Lower left abdominal stomach pain in women: Young women may have ischemia and hypoxia of the ovary due to torsion of the ovarian cyst, causing severe lower left abdominal pain. In this case, the patient needs to perform gynecological ultrasound examination as soon as possible to clarify the nature of the lesion and then promptly perform surgical cyst repositioning or cyst debridement. There is also abdominal pain caused by left ureteral stones, which can cause spasmodic ureteral pain due to small stones embedded in the ureter. Patients will experience gastrointestinal symptoms such as nausea and vomiting, which may be accompanied by radiating pain in the left groin area. Patients can have their pain relieved by cystoscopic stone extraction or extracorporeal impact lithotripsy to break up the stone and excrete it down the urine.