The symptoms of ovulation are as follows: 1. During the process from the proliferative phase to the secretory phase, the number of cell layers increases and glycogen secretion increases. After the vaginal bacteria secrete glycogen into lactic acid bacteria, the vaginal discharge will increase; 2. The cervical discharge increases and is thin and lacrimal, and the longest lacrimal can be greater than 10 cm; 3. During ovulation, the peak of LH leads to an increase of progesterone, which prompts the proteolytic enzymes of follicular fluid and Prostaglandins increase, which will dissolve the collagen in the most raised position of the follicle to form the ovulation pore. During ovulation, the estrogen value is higher, and the ovarian estrogen guides the peristalsis of the fallopian tube to increase, and the fibers increase, so some patients may feel discomfort in the lower abdomen. After the follicles are expelled, the pain and distension may disappear.