What Causes Left-Sided Abdominal Pain?

As the pace of modern life gradually accelerates, people are increasingly neglecting regular dietary habits and sleep schedules, leading to numerous health issues that significantly disrupt daily life. For instance, left lower abdominal pain is a common complaint—what, then, are its potential causes?

What Causes Left Lower Abdominal Pain?

Left lower abdominal pain may stem from diseases affecting the descending colon and sigmoid colon. Infectious inflammatory conditions—such as bacterial dysentery, amoebic dysentery, or parasitic infections—can occur in these segments. Immune-mediated inflammatory disorders, including ulcerative colitis, may also cause left lower abdominal pain. Additionally, colorectal tumors represent a frequent cause of such pain. Furthermore, ischemic colitis—a condition resulting from reduced blood flow—commonly affects the descending and sigmoid colon and can likewise manifest as left lower abdominal pain.

Left lower abdominal pain may also originate from urinary system disorders—for example, urinary tract stones. Patients often experience severe pain in the left abdomen or left lower quadrant, particularly during physical activity; this pain is frequently accompanied by low back pain and hematuria. In female patients, pelvic disorders constitute another common cause of left lower abdominal pain, including pelvic inflammatory disease (PID), salpingo-oophoritis, ovarian cancer, and ovarian torsion. Moreover, extra-abdominal conditions—such as lumbar spine disorders, lumbar disc herniation, lumbar tuberculosis, or spinal tumors—may also present with referred left lower abdominal pain.

If left lower abdominal pain occurs, prompt medical evaluation and treatment are essential to prevent complications or progression of underlying disease. Female patients should consider consulting a gynecologist for appropriate assessment and management. We hope this information proves helpful to you.