Flirting does not have a direct effect on a woman’s menstruation. In general, flirting, masturbation, and sex during a woman’s non-menstrual period are normal behaviors that do not benefit, but are not harmful to, menstruation. Menstruation, the process of periodic shedding and bleeding of the endometrium that accompanies the cyclical changes of the ovaries. The appearance of regular menstruation is an important sign of mature reproductive function. Flirting, on the other hand, mostly refers to a woman’s normal sex life or masturbation and does not have an effect on endometrial changes and hormone levels. However, it is important to note that excessive masturbation, sex, or lack of attention to cleanliness and hygiene may lead to gynecological diseases that can cause menstrual disorders. In addition, accidental pregnancy can also lead to menstrual discontinuation if no safety measures are taken. An occasional early or late menstruation is also a normal phenomenon and should not be a cause for concern, as long as you continue to observe it. However, if menstrual changes occur regularly, you need to go to a regular hospital gynecology department to find out the cause.