Pain in the lower left abdomen in women is not necessarily cancer. The most common cause is gynecological inflammation, which may be related to premenstrual pelvic congestion or pregnancy. Gynecological diseases such as pelvic inflammatory disease, endometritis and tubal torsion can cause symptoms of pain in the lower left abdomen in women. Patients need to pay attention to whether the leucorrhea is normal, whether there is a high volume, color change and change in sex. Pain in the lower left abdomen can also occur when the menstrual period is cold, tired, stressed, or emotionally tense. Acute and chronic colitis can also cause pain in the left lower abdomen, and patients tend to have a combination of diarrhea, nausea, vomiting, and loose watery stools. In addition, patients with malignant tumors occurring in the descending colon may also have pain or pressure pain in the lower left abdomen, usually accompanied by blood in the stool and unformed stools, etc. Colonoscopy can be improved to clarify the presence of intestinal tumors. Women with left lower abdominal pain need to pay attention to rest, keep warm and avoid spicy and stimulating food. If the pain persists without relief, she should go to the gynecology or gastroenterology department of the hospital in time to avoid delaying her condition.