If the endometrial lining is thick after miscarriage, it is a normal physiological phenomenon, because most of the miscarriages will gradually resume ovulation into the luteal phase in about 15-20 days, and the endometrial lining will be thickened at this time. If the endometrium has returned to its initial state, no special treatment is needed. If the endometrium is still abnormal and still thickened, further treatment is needed and diagnostic scraping treatment is required. It is important to observe the bleeding after miscarriage, if the bleeding continues to increase or if there is a post-abortion infection, it can also lead to the appearance of endometrial thickening. After miscarriage, it is necessary to remember that sexual intercourse and tub bathing are prohibited for one month, otherwise infection may occur or it may be detrimental to the recovery of the endometrium.