Women in the ovulation period in the abdomen a vague feeling of pain, usually women in the ovulation period, follicles from the ovary discharge, with the pelvic follicular fluid outflow, so that the follicle accumulation to the patient’s rectal fossa, which causes stimulation of the patient’s abdominal mucosa, causing the patient’s abdomen to appear a vague feeling of pain. Some sensitive women may also experience a small amount of localized shedding of the uterine lining or a small amount of bleeding, usually accompanied by mild abdominal pain, as a result of a sharp drop in estrogen, which cannot maintain the normal growth of the uterine lining in the body. Usually lasts about 1-2 days, that is, the ovary ovulation time, in the ovary ovulation patients small abdominal pain will gradually subside, belongs to the normal physiological reaction of female ovulation, does not require any treatment.