Upper left side back pain can be caused by acute pancreatitis, Healthline says. Although the pain manifests mostly in the upper left side of the abdomen, it can spread to the left side of the back and left shoulder blade... More »

According to NetWellness, lower back pain on the left side is a common symptom of kidney stones. Kidney pain typically begins on the left side of the lower back and travels to the abdomen and trunk as the stones move thr... More »

Back pain on the lower left side indicates anything from an injury to pressure on the nerve roots, says WebMD. In rare cases, lower back pain is a sign of ankylosing spondylitis, bacterial infection or spinal tumors. Pro... More »

Abdominal swelling on the left side has many potential causes, one being acute pancreatitis, according to Healthline. The National Institutes of Health cites diverticulitis as another other possible cause. More »

Conditions such as costochondritis, ruptured spleen and rib fractures may cause left side rib pain, according to Healthline. Other possible causes include osteoporosis and pleurisy. More »

www.reference.com Health Pain & Symptoms

Possible causes of arm pain, which may affect the upper limb and start anywhere from the fingers to the shoulder, include an injury, overuse of the limb or referred pain from another body part, according to Healthline. A... More »

A dull, aching pain on the left side of the lower stomach could indicate inflammation, intestinal disorders, infection or abnormal growths, according to Healthline. Dull, aching pain in the lower stomach and abdomen also... More »