Women’s left lower abdominal pain is usually related to the following causes: 1. gynecological inflammation, dysmenorrhea: it is recommended to go to the hospital for examination and do gynecological ultrasound to observe the presence of inflammation and torsion of the uterus and ovaries, and the presence of fluid in the abdominal cavity; 2. tumors: such as gastrointestinal tumors, which can cause left lower abdominal pain; 3. ureteral diseases: it is recommended that patients do ultrasound of the kidney, ureter and bladder to observe the presence of stones and inflammatory occupations in the body. The urine routine can be checked to observe the presence of red blood cells, white blood cells, urine protein and crystals in the urine. If the pain symptoms have not been relieved or the cause has not been clarified, the disease can be looked for by colonoscopy or lower abdominal CT, MRI, etc.