Under normal circumstances, in the case of a natural miscarriage, the gestational sac is usually expelled within one week, and the decidua tissue is also expelled within one week. If there is still bleeding more than one week after a natural miscarriage, it is imperative to visit a hospital for related examinations, typically requiring an ultrasound to observe the miscarriage situation. If the miscarriage is complete, then there are generally no major issues. However, if the miscarriage is incomplete, a dilation and curettage procedure may be necessary. It is possible for an incomplete miscarriage to occur naturally. Therefore, if there is still bleeding after one week, further examinations are necessary. In cases of natural miscarriage, it is usually advised to wait at least six months before trying to conceive again, and relevant examinations must be conducted before attempting again to determine the causes of the natural miscarriage and to treat accordingly.