What is the cause of bleeding during ovulation?

Ovulation bleeding is caused by shed cells and bacteria in the vagina. When a woman enters her ovulation period, her ovaries begin to release eggs, and the acidic environment in her vagina changes. This makes it easier for exfoliated cells and bacteria to breed in the vagina, leading to the appearance of threads of bleeding.

In addition to bleeding streaks, women may also feel some discomfort during ovulation, such as vaginal pain, itching, cramps, etc. These discomforts usually don't last long, but they can cause some pain to women.

However, not all women experience ovulation bleeding. Some women may experience ovulation with less or no bleeding. In addition, age, reproductive status, chronic diseases, etc. may also affect the frequency and degree of bleeding during ovulation.