The medical term for menstruation is puerperium. A woman’s puerperium is a 42-day period, generally 30 to 42 days of menstruation, but the exact time varies from person to person. Traditionally speaking, the menstruation period is 30 days, but 30 days after the birth of the mother’s body and uterus have not fully recovered to normal, the uterus after delivery to return to non-pregnancy state requires 6 weeks, so the scientific menstruation period is 42 days. Women postpartum sitting in the month when the body is relatively weak, we must pay attention to reasonable increase in nutrition to regulate the body, it is recommended to eat more lean meat, soy products, milk products, eggs and other high-protein foods, to promote the body to recover, with fresh vegetables and fruits and other foods containing vitamins and dietary fiber. Pay attention to keep warm in the month, avoid cold, pay attention to pubic hygiene, strictly prohibit sexual intercourse, generally 42 days after delivery can go to the hospital to do postpartum review, to understand the body and uterus recovery.