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Symptoms and Signs – Differential Diagnosis of Amenorrhea
Amenorrhea refers to the absence of menstrual flow and can be categorized as either primary or secondary. Primary amenorrhea is characterized by the absence of menstruation before the age of 16. Secondary amenorrhea is characterized by the cessation of menstruation for a period of 3 months or more, starting at the proper age, without any natural physiological causes like pregnancy, lactation, or menopause.
Pathologic amenorrhea occurs due to either anovulation or physical blockage of menstrual outflow, such as an imperforate hymen, cervical stenosis, or intrauterine adhesions. Anovulation can occur due to hormonal imbalance, chronic illness, stress or emotional disorders, intense physical activity, inadequate nutrition, obesity, or structural abnormalities, such as congenital loss of the ovaries. Historical and Physical Assessment
Start by ascertaining whether the amenorrhea is primary or secondary. For main cases, inquire about the age at which the patient's mother first experienced menstruation, as the onset of menarche tends to be quite stable within families. Assess the patient's holistic development, including physical, mental, and emotional aspects, as several factors such as heredity and climate can potentially cause a delay in menarche until the age of 16 or later.
If menstruation commenced at a suitable age but subsequently discontinued, ascertain
The frequency and duration of the patient's prior menstrual cycles. Inquire about the initiation and characteristics of any alterations in her regular menstrual cycle, and ascertain the precise date of her most recent menstruation. Determine if she has observed any associated indicators, such as breast engorgement or alterations in body weight.
Ascertain the most recent occurrence of the patient's physical examination. Examine her medical records, paying particular attention to any chronic conditions, such as anemia, or the use of hormonal contraceptives. Inquire about her fitness routines, particularly her jogging habits, and whether she encounters stress in her professional or personal life. Assess the patient's dietary patterns, including the frequency and portion sizes of meals and snacks, and inquire about any recent weight gain.
Examine her physical attributes for indications of secondary sexual features or indicators of masculinization. If you are tasked with conducting a pelvic examination, ensure to examine for any abnormal anatomical structures in the outflow canal, such as cervical adhesions, fibroids, or an imperforate hymen or uterus. Amenorrhea can also occur as a consequence of pharmacological or hormonal therapies.
Differential Diagnosis of Amenorrhea
Adrenal tumor
Amenorrhea can be accompanied by acne, thinning of scalp hair, hirsutism, elevated blood pressure, central obesity, and psychotic alterations. The presence of uneven growth of the ovaries, along with the sudden appearance of masculine characteristics, typically suggests the presence of an adrenal tumor
Adrenocortical hyperplasia refers to the excessive growth of the adrenal cortex.
Amenorrhea occurs before the appearance of typical cushingoid symptoms, including central obesity, facial rounding, a fatty deposit at the back of the neck, bruises, purple stretch marks, high blood pressure, kidney stones, mental health issues, and an increased difference between systolic and diastolic blood pressure. Acne, hair loss, and excessive hair growth usually manifest.
Adrenocortical hypofunction refers to a condition where the adrenal glands produce insufficient amounts of hormones. Adrenocortical hypofunction can lead to several symptoms, including amenorrhea, weariness, irritability, weight loss, increased pigmentation (such as bluish black coloring of the areolas and mucous membranes of the lips, mouth, rectum, and vagina), vitiligo, nausea, vomiting, and orthostatic hypotension.
Amenorrhea-lactation disorders.
Amenorrhea-lactation disorders, such as Forbes-Albright and Chiari-Frommel syndromes, result in the lack of menstrual periods and the presence of lactation without breastfeeding. Additional symptoms include sudden episodes of intense heat, pain during sexual intercourse, thinning and drying of the vaginal walls, and swollen and enlarged breasts
Anorexia Nervosa
Anorexia nervosa is an eating disorder characterized by an extreme fear of gaining weight and a distorted body image.
Anorexia nervosa is a psychological disorder that can lead to either primary or secondary amenorrhea. Additional observations consist of substantial weight loss, a gaunt or emaciated physical appearance, repetitive behavior patterns, a patchy or pale complexion, difficulty with bowel movements, diminished sexual desire, reduced enjoyment in previously pleasurable activities, dry skin, hair loss on the scalp, fine hair growth on the face and arms, deterioration of skeletal muscles, and disruptions in sleep patterns.
Ovarian agenesis.
Primary amenorrhea and the absence of secondary sex characteristics occur as a consequence of congenital absence of the ovaries.
Uterine agenesis.
Primary amenorrhea is characterized by the congenital absence of the uterus. The patient may experience the growth of mammary glands.
Corpus luteum cysts.
Corpus luteum cysts can lead to abrupt cessation of menstruation, accompanied by intense stomach pain and enlargement of the breasts. Upon examination, a sensitive growth in the adnexal region and increased redness in the vagina and cervix may be observed.
Hypothalamic tumor
Aside from amenorrhea, a hypothalamic tumor can result in endocrine and visual field abnormalities, impaired development or functioning of the gonads, and reduced height.
Hypothyroidism
Hypothyroidism is a medical condition characterized by an underactive thyroid gland. Insufficient amounts of thyroid hormone can lead to primary or secondary amenorrhea. Initial ambiguous symptoms commonly include tiredness, memory lapses, sensitivity to cold, unexplained increase in body weight, and difficulty with bowel movements. Additional symptoms include a slow heart rate, reduced mental sharpness, dry and flaky skin that lacks elasticity, swelling in the cheeks, hands, and feet, a hoarse voice, swelling around the eyes, drooping eyelids, dry and thinning hair, and thick and easily breakable nails. Additional frequent observations include of anorexia, abdominal distention, reduced libido, ataxia, intention tremor, nystagmus, and delayed reflex relaxation time, particularly in the Achilles tendon.
Mosaicism
Mosaicism refers to the presence of two or more genetically distinct cell populations within an individual.
Mosaicism leads to the occurrence of primary amenorrhea and the lack of secondary sexual characteristics.
Ovarian insensitivity to gonadotropins
Ovarian insensitivity to gonadotropins, a hormonal imbalance, results in amenorrhea and a lack of secondary sexual characteristics.
Pituitary tumor
Amenorrhea might serve as an initial indication of a pituitary tumor. Additional observations consist of headache, visual impairments such as bitemporal hemianopsia, and acromegaly. Cushingoid symptoms encompass a range of physical manifestations such as moon face, buffalo hump, hirsutism, hypertension, truncal obesity, bruising, purple striae, expanded pulse pressure, and psychological disorders.
Polycystic ovarian syndrome, also known as PCOS
Menarche usually occurs at the expected age, followed by irregular menstrual periods, oligomenorrhea, and secondary amenorrhea. Episodes of excessive bleeding may alternate with episodes of absence of menstruation. This disease may also be accompanied by obesity, hirsutism (excessive hair growth), minor deepening of the voice, and swollen ovaries that resemble oysters
Pasudoamenorrhea
Pseudoamenorrhea refers to a condition where there is a false absence of menstruation.
An anatomical abnormality, such as imperforate hymen, blocks the normal flow of menstrual blood, leading to primary amenorrhea and potentially recurring episodes of abdominal pain. Upon examination, a protruding hymen may seem pink or blue in color.
Pseudocyesis is a condition in which a person experiences the symptoms of pregnancy, such as weight gain and missed periods, despite not actually being pregnant.Pseudocyesis is a condition where the absence of menstruation, known as amenorrhea, is followed by symptoms such as an exaggerated curvature of the spine called lordosis, swelling of the abdomen, feelings of nausea, and an increase in the size of the breasts.
Testicular feminization
Primary amenorrhea may indicate the presence of male pseudohermaphroditism. The patient, phenotypically female but genotypically male, exhibits breast and external genitalia development but minimal or without pubic hair.
Thyrotoxicosis.
A surplus of thyroid hormone can lead to the absence of menstrual periods, a condition known as amenorrhea. Typical indications and symptoms consist of a swollen thyroid (goiter), restlessness, inability to tolerate heat, excessive sweating, shaking, irregular heartbeats, rapid heart rate, difficulty breathing, weakness, and weight loss despite an increased desire to eat.
Turner's syndrome.
This syndrome of hereditary ovarian dysgenesis may be indicated by primary amenorrhea and lack of development of secondary sex features. Common characteristics include a small height, skin folds on the neck, a low hairline on the back of the neck, a large chest with nipples that are far apart, insufficient breast growth, underdeveloped reproductive organs, and swelling in the legs and feet.
Uterine hypoplasia refers to an underdevelopment or incomplete growth of the uterus.
Primary amenorrhea occurs due to uterine underdevelopment, which can be identified through a physical examination.
Additional factors that can contribute to this include the usage of medications or drugs. Amenorrhea may be caused by busulfan, chlorambucil, injectable or implanted contraceptives, cyclophosphamide, and phenothiazines. Discontinuation of hormonal contraceptives might lead to anovulation and amenorrhea.
Medical treatment using high-energy radiation to target and destroy cancer cells. Abdominal irradiation can result in the destruction of the endometrium or ovaries, leading to amenorrhea.
Medical procedure involving the manipulation of body tissues to treat a condition or disease. Amenorrhea is caused by the surgical removal of either both ovaries or the uterus.
Unique factors to take into account
Prior to commencing diagnostic testing, it is imperative to do physical and pelvic examinations in individuals with secondary amenorrhea to exclude the possibility of pregnancy. Common diagnostic procedures include progestin withdrawal, analysis of serum hormone levels, assessment of thyroid function, and endometrial biopsy.
Providing guidance and advice to patients
Elucidate the therapeutic approach and anticipated results, urge the patient to openly address her anxieties, and recommend psychological counseling if deemed necessary.
Tips for Pediatrics
Amenorrhea, a condition characterized by the absence of menstruation, is more common in adolescent girls, particularly when it is triggered by emotional disturbances, often related to school, social, or familial issues.
Geriatric Pointers
Amenorrhea in women over the age of 50 typically indicates the beginning of menopause.
Amenorrhea refers to the absence of menstrual flow and can be categorized as either primary or secondary. Primary amenorrhea is characterized by the absence of menstruation before the age of 16. Secondary amenorrhea is characterized by the cessation of menstruation for a period of 3 months or more, starting at the proper age, without any natural physiological causes like pregnancy, lactation, or menopause.
Pathologic amenorrhea occurs due to either anovulation or physical blockage of menstrual outflow, such as an imperforate hymen, cervical stenosis, or intrauterine adhesions. Anovulation can occur due to hormonal imbalance, chronic illness, stress or emotional disorders, intense physical activity, inadequate nutrition, obesity, or structural abnormalities, such as congenital loss of the ovaries. Historical and Physical Assessment
Start by ascertaining whether the amenorrhea is primary or secondary. For main cases, inquire about the age at which the patient's mother first experienced menstruation, as the onset of menarche tends to be quite stable within families. Assess the patient's holistic development, including physical, mental, and emotional aspects, as several factors such as heredity and climate can potentially cause a delay in menarche until the age of 16 or later.
If menstruation commenced at a suitable age but subsequently discontinued, ascertain
The frequency and duration of the patient's prior menstrual cycles. Inquire about the initiation and characteristics of any alterations in her regular menstrual cycle, and ascertain the precise date of her most recent menstruation. Determine if she has observed any associated indicators, such as breast engorgement or alterations in body weight.
Ascertain the most recent occurrence of the patient's physical examination. Examine her medical records, paying particular attention to any chronic conditions, such as anemia, or the use of hormonal contraceptives. Inquire about her fitness routines, particularly her jogging habits, and whether she encounters stress in her professional or personal life. Assess the patient's dietary patterns, including the frequency and portion sizes of meals and snacks, and inquire about any recent weight gain.
Examine her physical attributes for indications of secondary sexual features or indicators of masculinization. If you are tasked with conducting a pelvic examination, ensure to examine for any abnormal anatomical structures in the outflow canal, such as cervical adhesions, fibroids, or an imperforate hymen or uterus. Amenorrhea can also occur as a consequence of pharmacological or hormonal therapies.
Differential Diagnosis of Amenorrhea
Adrenal tumor
Amenorrhea can be accompanied by acne, thinning of scalp hair, hirsutism, elevated blood pressure, central obesity, and psychotic alterations. The presence of uneven growth of the ovaries, along with the sudden appearance of masculine characteristics, typically suggests the presence of an adrenal tumor
Adrenocortical hyperplasia refers to the excessive growth of the adrenal cortex.
Amenorrhea occurs before the appearance of typical cushingoid symptoms, including central obesity, facial rounding, a fatty deposit at the back of the neck, bruises, purple stretch marks, high blood pressure, kidney stones, mental health issues, and an increased difference between systolic and diastolic blood pressure. Acne, hair loss, and excessive hair growth usually manifest.
Adrenocortical hypofunction refers to a condition where the adrenal glands produce insufficient amounts of hormones. Adrenocortical hypofunction can lead to several symptoms, including amenorrhea, weariness, irritability, weight loss, increased pigmentation (such as bluish black coloring of the areolas and mucous membranes of the lips, mouth, rectum, and vagina), vitiligo, nausea, vomiting, and orthostatic hypotension.
Amenorrhea-lactation disorders.
Amenorrhea-lactation disorders, such as Forbes-Albright and Chiari-Frommel syndromes, result in the lack of menstrual periods and the presence of lactation without breastfeeding. Additional symptoms include sudden episodes of intense heat, pain during sexual intercourse, thinning and drying of the vaginal walls, and swollen and enlarged breasts
Anorexia Nervosa
Anorexia nervosa is an eating disorder characterized by an extreme fear of gaining weight and a distorted body image.
Anorexia nervosa is a psychological disorder that can lead to either primary or secondary amenorrhea. Additional observations consist of substantial weight loss, a gaunt or emaciated physical appearance, repetitive behavior patterns, a patchy or pale complexion, difficulty with bowel movements, diminished sexual desire, reduced enjoyment in previously pleasurable activities, dry skin, hair loss on the scalp, fine hair growth on the face and arms, deterioration of skeletal muscles, and disruptions in sleep patterns.
Ovarian agenesis.
Primary amenorrhea and the absence of secondary sex characteristics occur as a consequence of congenital absence of the ovaries.
Uterine agenesis.
Primary amenorrhea is characterized by the congenital absence of the uterus. The patient may experience the growth of mammary glands.
Corpus luteum cysts.
Corpus luteum cysts can lead to abrupt cessation of menstruation, accompanied by intense stomach pain and enlargement of the breasts. Upon examination, a sensitive growth in the adnexal region and increased redness in the vagina and cervix may be observed.
Hypothalamic tumor
Aside from amenorrhea, a hypothalamic tumor can result in endocrine and visual field abnormalities, impaired development or functioning of the gonads, and reduced height.
Hypothyroidism
Hypothyroidism is a medical condition characterized by an underactive thyroid gland. Insufficient amounts of thyroid hormone can lead to primary or secondary amenorrhea. Initial ambiguous symptoms commonly include tiredness, memory lapses, sensitivity to cold, unexplained increase in body weight, and difficulty with bowel movements. Additional symptoms include a slow heart rate, reduced mental sharpness, dry and flaky skin that lacks elasticity, swelling in the cheeks, hands, and feet, a hoarse voice, swelling around the eyes, drooping eyelids, dry and thinning hair, and thick and easily breakable nails. Additional frequent observations include of anorexia, abdominal distention, reduced libido, ataxia, intention tremor, nystagmus, and delayed reflex relaxation time, particularly in the Achilles tendon.
Mosaicism
Mosaicism refers to the presence of two or more genetically distinct cell populations within an individual.
Mosaicism leads to the occurrence of primary amenorrhea and the lack of secondary sexual characteristics.
Ovarian insensitivity to gonadotropins
Ovarian insensitivity to gonadotropins, a hormonal imbalance, results in amenorrhea and a lack of secondary sexual characteristics.
Pituitary tumor
Amenorrhea might serve as an initial indication of a pituitary tumor. Additional observations consist of headache, visual impairments such as bitemporal hemianopsia, and acromegaly. Cushingoid symptoms encompass a range of physical manifestations such as moon face, buffalo hump, hirsutism, hypertension, truncal obesity, bruising, purple striae, expanded pulse pressure, and psychological disorders.
Polycystic ovarian syndrome, also known as PCOS
Menarche usually occurs at the expected age, followed by irregular menstrual periods, oligomenorrhea, and secondary amenorrhea. Episodes of excessive bleeding may alternate with episodes of absence of menstruation. This disease may also be accompanied by obesity, hirsutism (excessive hair growth), minor deepening of the voice, and swollen ovaries that resemble oysters
Pasudoamenorrhea
Pseudoamenorrhea refers to a condition where there is a false absence of menstruation.
An anatomical abnormality, such as imperforate hymen, blocks the normal flow of menstrual blood, leading to primary amenorrhea and potentially recurring episodes of abdominal pain. Upon examination, a protruding hymen may seem pink or blue in color.
Pseudocyesis is a condition in which a person experiences the symptoms of pregnancy, such as weight gain and missed periods, despite not actually being pregnant.Pseudocyesis is a condition where the absence of menstruation, known as amenorrhea, is followed by symptoms such as an exaggerated curvature of the spine called lordosis, swelling of the abdomen, feelings of nausea, and an increase in the size of the breasts.
Testicular feminization
Primary amenorrhea may indicate the presence of male pseudohermaphroditism. The patient, phenotypically female but genotypically male, exhibits breast and external genitalia development but minimal or without pubic hair.
Thyrotoxicosis.
A surplus of thyroid hormone can lead to the absence of menstrual periods, a condition known as amenorrhea. Typical indications and symptoms consist of a swollen thyroid (goiter), restlessness, inability to tolerate heat, excessive sweating, shaking, irregular heartbeats, rapid heart rate, difficulty breathing, weakness, and weight loss despite an increased desire to eat.
Turner's syndrome.
This syndrome of hereditary ovarian dysgenesis may be indicated by primary amenorrhea and lack of development of secondary sex features. Common characteristics include a small height, skin folds on the neck, a low hairline on the back of the neck, a large chest with nipples that are far apart, insufficient breast growth, underdeveloped reproductive organs, and swelling in the legs and feet.
Uterine hypoplasia refers to an underdevelopment or incomplete growth of the uterus.
Primary amenorrhea occurs due to uterine underdevelopment, which can be identified through a physical examination.
Additional factors that can contribute to this include the usage of medications or drugs. Amenorrhea may be caused by busulfan, chlorambucil, injectable or implanted contraceptives, cyclophosphamide, and phenothiazines. Discontinuation of hormonal contraceptives might lead to anovulation and amenorrhea.
Medical treatment using high-energy radiation to target and destroy cancer cells. Abdominal irradiation can result in the destruction of the endometrium or ovaries, leading to amenorrhea.
Medical procedure involving the manipulation of body tissues to treat a condition or disease. Amenorrhea is caused by the surgical removal of either both ovaries or the uterus.
Unique factors to take into account
Prior to commencing diagnostic testing, it is imperative to do physical and pelvic examinations in individuals with secondary amenorrhea to exclude the possibility of pregnancy. Common diagnostic procedures include progestin withdrawal, analysis of serum hormone levels, assessment of thyroid function, and endometrial biopsy.
Providing guidance and advice to patients
Elucidate the therapeutic approach and anticipated results, urge the patient to openly address her anxieties, and recommend psychological counseling if deemed necessary.
Tips for Pediatrics
Amenorrhea, a condition characterized by the absence of menstruation, is more common in adolescent girls, particularly when it is triggered by emotional disturbances, often related to school, social, or familial issues.
Geriatric Pointers
Amenorrhea in women over the age of 50 typically indicates the beginning of menopause.
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