Presentation of Case First admission. A twenty-four-year-old woman, gravida II, para II, was admitted to the hospital for study.Two years before admission the patient began to have slight pain in the lower abdomen, which did not really bother her until eighteen months before entry, when it became so severe that she sought medical aid. At that time she was also having four or five bowel movements daily, rarely with a small amount of blood and with what she described as tenesmus and constipation. Her physician said that her bowels were "overactive." Pills of an unknown nature resulted in only . . .