During ovulation, due to individual differences, the amount of follicular fluid discharged when the follicle ruptures is not exactly the same for each person. For those who discharge a lot of follicular fluid, the follicle will stimulate the pelvic membrane after entering the pelvis and cause abdominal pain. Some people have abdominal pain accompanied by low back pain on the same side, lumbosacral pain and discomfort. Abdominal pain occurs if both ovaries take turns ovulating, rotating monthly on both sides of the lower abdomen. During the ovulation period there is a feeling of distension in the lower abdomen, which is due to the rupture of the follicle, the pain does not affect health and has no adverse consequences. Ovulation can be accompanied by a bloating pain in the lower abdomen, the mature egg is discharged from the surface of the ovary, to break through a membrane that wraps around the surface of the egg, and a small amount of fluid in the follicle when the egg is discharged flows into the very bottom of the pelvic cavity. Sometimes there is also a small amount of bleeding at the site of ovarian egg expulsion, so some women may feel a mild sensation of falling in the anus, and may also feel a mild pain in one side of the lower abdomen. If careful attention is paid, the same manifestation will appear on the other side of the lower abdomen next month, and the pain will disappear automatically after about a few hours of the symptoms of ovulation.