The majority of accidental abortions bleed, while a small percentage of patients do not bleed, depending on the individual. Accidental abortion usually occurs when the uterine lining is shed, accompanied by contractions of the uterine muscles, prompting it to be expelled from the body, so most of the patients will have vaginal bleeding when abortion occurs. However, it usually stops in 3 to 5 days and lasts up to 2 weeks. However, a small number of patients with induced abortion do not experience vaginal bleeding, but symptoms such as pregnancy reaction and abdominal pain will gradually disappear. Therefore, it is recommended that pregnant women who experience vaginal bleeding, abdominal pain, and disappearance of early pregnancy reaction need to be treated with vigilance and seek timely medical treatment to identify the causes to avoid delay.