There are various reasons for the hard position of the uterus in the small abdomen, which may be an enlarged uterus, ovaries and dilated intestines, ascites, tumors and so on, which need to be identified according to the signs and the nature of the mass and dealt with in a timely manner.1. Pregnancy: generally around 3 months of pregnancy can have a significantly enlarged and hardened uterus that can be touched, at this time there should be a history of menopause and sexual contact before menopause, and the combination of blood HCG and vaginal ultrasound can confirm the diagnosis. After pregnancy, you should pay attention to adjust your lifestyle, do not stay up late and eat nutritious food. Of course, the postpartum uterus can be felt as a small abdominal spherical hardness without complete recovery; 2. uterine fibroids: as the fibroids increase in size, the uterus expands and becomes hard, usually with irregular vaginal bleeding and menstrual disorders, etc., which can be observed on follow-up, and promptly surgically removed when the fibroids continue to increase in size, severe anemia and compression of abdominal organs; 3. uterine adenomyosis: cell proliferation in the basal layer of the endometrium, the The uterus is often uniformly enlarged and spherical in shape and may be hard to the touch, often accompanied by menstrual disorders and dysmenorrhea. Those with fertility requirements can be treated symptomatically, such as using hormones and non-steroidal drugs to improve menstrual disorders and dysmenorrhea; 4. Cervical cancer: it can be HPV infection, a lump can be felt in the abdomen in the middle and late stages, there can be contact bleeding, cancer metastasis can be seen as inguinal lymph enlargement, generally surgical treatment is performed, such as total excision of the uterus, synchronous radiotherapy; 5. Other problems: there are various reasons for hardening of the abdomen, which requires professional doctors Careful examination and identification are needed to make diagnosis and then treatment according to different situations. Especially when accompanied by nausea, vomiting, abdominal pain, blood in stool, etc., it is necessary to go to a regular hospital for timely consultation.