Most people think that pain in the small abdomen is a disease of the uterus, but in fact it is not. The uterus is located in the center and deepest part of the pelvis, and there are many organs nearby such as intestines, appendix, bladder, ureter, etc. Whether there is a problem with the reproductive system, digestive system or urinary system, it may cause vague pain in the small abdomen, and the patient may seek medical attention, and the doctor will make a comprehensive judgment based on symptoms, signs and examination results. A, reproductive system abnormalities 1, reproductive system inflammation: mostly caused by pathogenic infection, easy to occur after intercourse during menstruation. It may appear as increased leucorrhea, odor, fever, abdominal cramps, etc. It needs to be treated with vaginal wash or combined with antibiotics under the guidance of doctors; if there is pus in the uterine cavity or fallopian tubes or pelvic cavity, it is necessary to actively seek medical attention and treat pus drainage depending on the situation; 2. Pregnancy-related problems: such as pre-eclampsia, incomplete abortion, ectopic pregnancy (ectopic pregnancy) or after abortion or postpartum, there may be vague pain in the abdomen, which needs to be According to the actual situation, it is recommended to consult a doctor to avoid serious consequences; 3, dysmenorrhea: can be divided into pathological dysmenorrhea and physiological dysmenorrhea, pathological dysmenorrhea is seen in reproductive system abnormalities, endometriosis, adenomyosis, uterine fibroids, etc., need a doctor to make a diagnosis, targeted treatment. If the symptoms of physiological dysmenorrhea are mild, they can be relieved by local hot compresses, but if they are serious, they need to take ibuprofen and other drugs as prescribed by the doctor. 4. Under the guidance of the doctor, according to the different circumstances, the corresponding treatment. Second, digestive system diseases 1, chronic enteritis: environment, infection, immune factors can lead to chronic enteritis, intermittent abdominal pain, diarrhea, vomiting as common symptoms. Anti-infective drugs and antispasmodic drugs can be applied to relieve intestinal spasm and reduce abdominal pain. 2. Rectal and sigmoid colon tumors: If, in addition to lower abdominal pain, there are also changes in stool characteristics, bloody stools, etc., it is necessary to ask the doctor to perform anal finger diagnosis or colonoscopy to clarify the diagnosis and, if necessary, surgery. Third, urinary system diseases such as cystitis, urinary stones, bladder tumors, etc., in addition to lower abdominal vague pain, may also appear hematuria, urinary frequency, urinary urgency, urinary pain, etc., should be treated on a case-by-case basis. It should be noted that the hidden pain in the abdomen may involve multiple organs and often has radiating pain and involvement pain, so detailed examination is needed to confirm the diagnosis, and patients should not be too impatient and actively cooperate with the examination. If the pain worsens or other discomfort occurs, you should inform your doctor in a timely manner.