Abdominal pain in pregnancy.

Abdominal pain in pregnancy is most commonly caused by complications of the pregnancy, e.g., abortion, ectopic pregnancy and abruptio placentae. A careful history and methodical physical examination and, if necessary, simple ultrasonographic investigations will reveal the cause in most of these conditions. In a few cases of abdominal pain in pregnancy a gynaecological condition, such as torsion of an ovarian cyst, or a nongynaecological (medical or surgical) one is the cause. Some of these conditions are serious, e.g., acute appendicitis, and unless the correct diagnosis is made and the appropriate management promptly instituted both the mother and her baby may suffer tragic consequences. Moreover, these conditions are more likely to be misdiagnosed during pregnancy. This is because the anatomical and physiological changes which occur in pregnancy tend to change and obtund the expected clinical features and laboratory data which are used to diagnose these conditions. Their early diagnosis therefore requires a high index of suspicion together with awareness of the ways in which they may present in pregnancy.