The majority of SABs are caused by chromosomal abnormalities that are incompatible with life; the majority also have autosomal trisomies. Maternal infections, such as Mycoplasma hominis, Ureaplasma urealyticum, syphilis, HIV, group B streptococci, and second trimester bacterial vaginosis, increase the risk for an SAB. Inherited disorders or abnormal embryonic development resulting from environmental factors (teratogens) may also play a role. A woman's occupation, such as a hair stylist, may also be a factor in SAB if she is exposed to teratogens. Unfavorable environmental factors also include interpersonal violence, as women who are in abusive relationships have a 50% higher chance of pregnancy loss.
Patients who are classified as habitual aborters (three or more consecutive SABs) usually have an incompetent cervixthat is, a situation in which the cervix is weak and does not stay closed to maintain the pregnancy. Another reason for habitual abortions may be antiphospholipid antibodies and polycystic ovarian disease.
Abortion, Spontaneous is a sample topic found in
To find other Nursing Central topics
please login or purchase a subscription.