Normal conjugal life has no effect on menstruation, the menstrual cycle is mainly affected by the body’s hormone secretion, female estrogen and progesterone are mainly secreted by the ovaries, so as long as the ovaries are mature and function normally, the menstrual cycle is normal, but the human body’s endocrine system is also affected by other factors, such as changes in the environment, mental stress, work fatigue, overstimulation, emotional anxiety, often stay up all night, living without regularity, etc. are prone to affect the endocrine system, resulting in changes in the menstrual cycle. However, the human body is also affected by other factors, such as environmental changes, mental stress, work, overstress, emotional anxiety, frequent late nights, irregular life, etc., which can easily affect the endocrine system and lead to changes in the menstrual cycle. During menstruation, the endometrium is shedding, the uterine cavity is traumatized, and the cervix is open, so it is necessary to refrain from sexual intercourse during menstruation, so as to prevent external bacteria from entering the uterine cavity and causing uterine infections and endometritis, etc. If you have intercourse during menstruation, it is easy to cause uterine infections, or the menstrual flow is too heavy, which will easily affect the menstruation cycle.