If women have left abdominal pain, the following diseases should be considered: 1, urinary stones, usually manifested as middle and lower abdominal cramps, pain is often dispersed to the perineum, and some patients will have left lumbar pain and discomfort, it is recommended that the patient improve the routine urinalysis, ultrasound or CT examination of the urinary tract. 2, colorectal tumors, including colon cancer and rectal cancer, the patient usually for the left side of the abdominal pain, often accompanied by diarrhea, blood in the stool, a sense of urgency and heaviness, some patients will have weight loss. 3, adnexal lesions, such as adnexal inflammation or adnexal tumors, can cause left abdominal inflammation or adnexal tumor, Patients usually have hidden pain in the left side of the abdomen, often accompanied by diarrhea, blood in stool, feeling of heaviness, and some patients may have weight loss, it is recommended that the patients improve the examination of tumor markers and colonoscopy.3. Adnexal lesions, such as adnexal inflammation or adnexal tumors, can cause left side of the abdominal pain, and it is recommended that the patients improve the ultrasound examination of gynecology and other examinations.