The pain in the abdomen on the 3rd day of ovulation is considered to have physiological causes. During ovulation, the follicle needs to keep enlarging and when it reaches a certain size, it needs to rupture before it can be combined with sperm for conception. The follicle fluid will flow into the pelvic cavity and cause a large amount of pelvic fluid, which will cause the pelvic blood vessels to dilate and cause pain in the small abdomen, even accompanied by back pain. This is a normal phenomenon that lasts for 3-5 days and does not affect your health. During the period of pain, it is not recommended to carry out strenuous activities, it is better to rest properly. Local hot compresses can be applied to relieve, but also pay attention to a good personal diet, chili, barbecue, etc. can not eat, so as not to stimulate the aggravation of the pain performance.