What causes pain in left quadrant of abdomen?

Many. Left abd. Pain causes include but is not limited to: ovarian cyst, ectopic pregnancy, diverticulitis, endometriosis, inguinal hernia, ovulation pain, intestinal obstruction, crohn’s disease, abscess, ulcerative colitis, seminal vesicle inflammation, cancer, aortic aneurysm, renal infection or stone, injury, angina, heart attack, pneumonia, enlarged or ruptured spleen, pancreatitis & obstipation.
Diverticular? Pain in the left lower quadrant of the abdomen can have many possible causes to include diverticular disease. If this pain is persistent or there is a change in bowel habitus - this warrants medical evaluation. Severe abdominal pain warrants urgent assessment.

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