During a natural miscarriage, vaginal bleeding occurs. This is because, after a miscarriage, the gestational sac and shed uterine lining also need to be expelled from the body, resulting in vaginal bleeding. Typically, this bleeding lasts about a week, gradually diminishing until it stops. If vaginal bleeding after a natural miscarriage persists for an extended period, even exceeding ten days without stopping, and is accompanied by abdominal pain, it is necessary to visit the hospital for an ultrasound to check for any remnants within the uterine cavity and possibly undergo a dilation and curettage procedure.