Clinically, the time of menstruation after biochemical transplantation varies from person to person. This is because the nutritional status of each person’s body and resistance to diseases are different. Therefore, it should be discussed on a case-by-case basis. The following are some common cases: 1. For younger women, such as those aged 20-25 years old, and with a better physical condition, after transplantation and biochemistry, menstruation can generally occur in 10-15 days. This is because the age is relatively small and the nutritional status is good, the body’s metabolism is relatively strong, so the recovery is faster. 2, women aged 25-30 years old and over 30 years old, in good nutritional condition after transplantation biochemical, generally after 15-20 days to be able to menstruate. Because the metabolism is relatively slow at an older age, and the function of the secretion system in the body has also declined to a certain extent, it takes a longer time to get menstruation.