It is best not to have intercourse 20 days after miscarriage, and only after 30 days after miscarriage, because the woman’s body is damaged during the process of miscarriage, the uterus needs to recover to normal, there is a small amount of vaginal bleeding and other situations. If you have intercourse prematurely, the uterus will not recover, and the uterus will be prone to poor recovery, lower abdominal pain and vaginal bleeding, which can lead to uterine infection and endometriosis and pelvic inflammatory disease, affecting future pregnancy and childbirth. Within 30 days after miscarriage, women should pay attention to proper rest, keep the vulva clean, prohibit bathing and sexual life, eat more hot and nutritious food, including meat, fish and shrimp, vegetables and fruits, avoid cold stimulation as much as possible, and prevent the occurrence of colds.