The possible diseases and treatment measures that may exist if the period is not clean for more than 10 days are as follows: 1. Pregnancy-related diseases: First, it depends on whether it is pregnancy. If it is caused by pregnancy, there is a possibility of ectopic pregnancy or preterm miscarriage. If ectopic pregnancy is diagnosed, you must be hospitalized and decide whether to apply conservative treatment with drugs or minimally invasive laparoscopic surgery according to your specific condition. If it is a pre-eclampsia abortion, fetal preservation treatment is carried out on the basis of clear intrauterine pregnancy and early intrauterine pregnancy to determine the presence of fetal buds and fetal heart, and progesterone drugs are commonly used; 2. Uterus-related lesions: If pregnancy is excluded, this kind of menstrual period not clean for more than 10 days is most commonly associated with cervical lesions or endometrial lesions, which should be checked for cervical polyps and submucosal fibroids protruding from the cervix. If it is cervical polyp, cervical polyp removal is required. In the case of submucosal fibroids, the submucosal fibroids will need to be removed vaginally. Endometrial lesions are often endometrial hyperplasia or endometrial polyps and require a vaginal ultrasound to determine the thickness of the endometrium. When endometrial lesions are identified, hysteroscopic surgery is needed to scrape the endometrium clean so that the bleeding can be completely stopped. Therefore, it is important to look for the causes of menstruation not cleared for more than 10 days from the above-mentioned aspects and then carry out the relevant treatment.