There are many causes of pain in the lower left side of the abdomen, which may be caused by a variety of reasons such as digestive system diseases, urinary system diseases, reproductive system diseases and so on.
1. Digestive system diseases: ulcerative colitis, irritable bowel syndrome, colorectal tumors and other benign and malignant diseases can manifest as pain in the left lower abdomen.
2. Urinary system diseases: kidney stones and ureteral stones on the left side can also cause pain in the left lower abdomen.
3. Reproductive system diseases: If a woman has pain in the lower left abdomen, she should also consider whether there is chronic uteritis, pelvic inflammatory disease, ovarian torsion or even ectopic pregnancy.
The pain in the lower left abdomen may also be caused by other reasons, patients should consult the doctor as soon as possible for a clear diagnosis to avoid delaying the condition.