The discharge of pink blood during ovulation is a normal physiological phenomenon that usually occurs during a woman's menstrual cycle. During the ovulation period, a woman's egg is released from the ovary and enters the uterus through the fallopian tube, where it combines with sperm to form a fertilized egg and begins a new life journey.

The cause of pink blood is currently unknown, but some research suggests it may be related to hormone levels in the body. During ovulation, a woman's ovaries secrete a hormone called "egg binding hormone" (egg cell binding hormone), which promotes the combination of eggs and sperm. If a woman's egg cell binding hormone levels are low, the egg will not bind to the sperm frequently enough, resulting in a lower fertilization rate and thus affecting pregnancy.

In addition, pink blood may also be caused by other factors, such as psychological stress, malnutrition, reproductive organ diseases, etc. If women often experience pink blood, they should seek medical attention promptly so that a diagnosis can be made and a corresponding treatment plan can be formulated.

Although pink blood is uncommon, it does not cause serious health problems. However, if women often experience pink blood, they should seek medical attention in time to confirm the diagnosis and develop appropriate treatment plans to ensure the woman's health and quality of life.