What causes left lower abdominal pain in males?

Pain in the lower left abdomen in males may be caused by various factors, mainly including: 1. Gastrointestinal diseases: such as colitis, proctitis, Crohn's disease, etc. These inflammatory bowel diseases can cause inflammation and ulcers in the gastrointestinal tract, leading to lower left abdominal pain, which may be accompanied by symptoms such as diarrhea and abdominal distension. 2. Urinary system diseases: such as kidney stones, ureteral stones, etc. The movement or obstruction of stones can cause severe pain, often accompanied by hematuria, frequent urination, and urgency. In addition, cystitis may also lead to lower left abdominal pain. 3. Reproductive system diseases: such as varicocele and epididymitis. These conditions can cause poor blood return or inflammatory reactions, thereby causing lower left abdominal pain. 4. Other factors: such as inguinal hernia, intestinal tumors, etc., may also cause lower left abdominal pain in males.