After a natural miscarriage, whether it can be completely cleared varies from individual to individual. Some women may have a complete miscarriage naturally. However, some people may have existing gynecological inflammation or be relatively weak, which can lead to incomplete miscarriage, necessitating further uterine cleaning. After the miscarriage, women should closely monitor their vaginal bleeding and abdominal pain. Normally, after such a miscarriage, abdominal pain should last about two to three days, and vaginal bleeding should clear up within a week. If vaginal bleeding persists for a longer time and abdominal pain occurs, the possibility of residual materials in the uterine cavity should be considered, and it is advised to go to the hospital for further ultrasound examination and subsequent treatment as needed.