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Medical Terms - An abortion is the deliberate removal of a fetus before it reaches the stage of normal viability, often occurring before 24 weeks of pregnancy. (Currently, there are rare instances where fetuses as early as 22 weeks of gestation have survived:)

Spontaneous abortion
Commonly referred to as miscarriage, this condition can manifest at any point prior to 28 weeks of gestation; 85 percent of cases occur within the initial 12 weeks of pregnancy. Among all pregnancies that are diagnosed, 25 percent result in spontaneous abortion.
Foetal chromosomal abnormalities are virtually frequently the cause of spontaneous abortions that occur in early pregnancy. Additional factors contributing to this condition include uterine morphology, maternal diseases such as diabetes mellitus, thyroid gland disorders (see to the section on endocrine glands), and immunological dysfunctions.Women with an aberrant immune system response to pregnancy are particularly susceptible to recurrent spontaneous abortion, defined as three or more occurrences of such abortion. Other contributing factors include advanced age, a history of several pregnancies, cigarette smoking, and a history of spontaneous (but not therapeutic) abortions.
Initial ULTRASOUND scans have revolutionized the approach to spontaneous abortion medicine. These criteria enable the differentiation between threatened abortion, characterized by maternal vaginal bleeding while the fetus is still alive; inevitable abortion, characterized by the initiation of uterine neck opening; incomplete abortion, characterized by the loss of part of the fetus or placenta with some remaining inside the uterus; and complete abortion. No evidence supports the notion that bed rest is a form of abortion.
The intervention successfully prevents a threatened abortion from becoming unavoidable.

An abortion that is either inevitable or partial often need the intervention of a gynaecologist to evacuate the uterus. (No treatment is necessary for complete miscarriage.) Uterine evacuation is performed with the administration of local or general anaesthesia, often involving a mild dilation of the uterine neck (cervix) and the removal of any leftover pregnancy residues.
Other causes of late abortions include premature cervix opening, uterine structural abnormalities, and maybe maternal infection.
The use of drugs to inhibit uterine contractions is common, however empirical research indicates that these interventions do not typically enhance the survival of the foetus. Proven instances of cervical incompetence can be treated by closing the cervix with a suture, which is then removed at 37 weeks of gestation. The empirical support for the efficacy of this technique is inconclusive.
Therapeutic abortion
Before an abortion procedure is legally allowed in the UK, two doctors must certify, under the 1967 Abortion Act, that continuing the pregnancy would pose a higher risk of harm to the physical and/or mental health of the mother or any existing child(ren) compared to terminating the pregnancy.
The Act, which had previously stipulated that the pregnancy should not have surpassed the 24th week at the time of the abortion, was amended by legislation in 1990. An abortion is now legally permissible if choosing to continue the pregnancy will endanger the woman's life, if the woman or her current child(ren) are at risk of mental health, or if there is a significant risk of severe disability to the baby. The primary cause for 95 percent of therapeutic terminations in the UK is the potential harm to the physical or mental well-being of the woman.
Therapeutic abortion is not subject to any time restriction, unless it is medically necessary to preserve the mother's life, there is a significant danger of severe fetal disability, or the mother's health is seriously and permanently compromised.
Some 205,000 terminations are performed annually in the UK, with only 1 – 1.5 percent occurring after 20 weeks of gestation. The majority of these late abortions are for severe, late-diagnosed foetal abnormalities. In 2007, the abortion rate was approximately 18 per 1000 women aged 15-44.
The maternal mortality rate for therapeutic abortion is below 1 per 100,000 women. If the procedure is executed proficiently by qualified physicians before to 12 weeks of pregnancy, it is classified as highly safe. No conclusive evidence exists to suggest that therapeutic abortion is linked to any decrease in future fertility, higher occurrence of spontaneous abortion, or premature birth in following pregnancies.


Methods of terminating pregnancy
All abortions must be performed in licenced facilities or at NHS hospitals. The modalities employed are either surgical or medical, with the latter becoming increasingly prevalent and the former diminishing with time. Adequate consent must be acquired, duly signed, and witnessed. Pregnant women under 16 years old might undergo termination as long as the doctors receiving the consent are confident that she fully comprehends the procedure and its consequences. While parental consent is not legally mandatory for those under the age of 16, counselling doctors are obligated to document that they have recommended such young individuals to notify their parents. Yet, a significant number of young people fail to do so. Her partner lacks legal authority in the decision to end her pregnancy.
Medical methods include the use of a combination of two medications, mifepristone and a prostaglandin (or a prostaglandin-like medicine, misoprostol,to terminate a pregnancy within a gestational window of up to 63 days. Administering a comparable regimen is possible from nine to 12 weeks gestation, although at this stage, there is a 5 percent chance of post-treatment complications.
Haemorrhage.
Confirmation of pregnancy and gestation is initially achieved via an ultrasound scan. The pouch housing the developing placenta and foetus must be anatomically located within the uterus. The woman must be below the age of 35 if she smokes to a moderate degree, but she can be above 35 if she is a non-smoker. Limitations to utilizing this approach include women with adrenal gland disorders, those on long-term corticosteroids, and those with a haemorrhagic condition or on anticoagulants. These medications are contraindicated in women with severe liver or kidney disease, and caution should be exercised in those with chronic obstructive pulmonary disease (COPD), cardiovascular system disorders, prosthetic heart valves as well as in those with a history of caesarean section or ectopic pregnancy or those undergoing treatment for hypertension.
Some clinics use this medication combination for pregnancies beyond 12 weeks gestation. Pregnancies nearing viability (20 weeks) may necessitate pre-treatment fetocide, which involves the administration of intrauterine medication to destroy the foetus.
Surgical techniques Up until 14 - 15 weeks gestation, vacuum curettage is a technique employed. Certain extremely A-4 Abortion

Competent gynaecologists will surgically terminate pregnancies by dilatation of the cervix and evacuation of the uterine contents until 22 weeks of gestation. A larger gestational size is associated with an increased risk of hemorrhage and uterine perforation. Illegal abortion is quite uncommon in the UK, however it is more prevalent in other nations. Where unlawful abortions occur, there is a significant danger of infection and perforation, and death is a highly probable outcome. Lawful abortions are typically considered to be safe. While partial-birth abortions are discussed in the United States, there is no documented instance of this practice in UK medical academic publications.



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