Heart disease has been the leading cause of death in the U.S. for the past 100 years, according to the American Heart Association. Despite how common it is, there are many questions floating around ...

Heart disease remains the leading cause of death in the U.S. Left arm pain during a heart attack is common due to shared nerve pathways with the heart. Chest discomfort is a key heart attack symptom.

Left upper quadrant (LUQ) pain stems from conditions that affect organs like your spleen, kidney, or stomach. It's best to see a doctor if your LUQ pain worsens or lasts more than 48 hours. Treatment ...

Acute pain is sharp, sudden, and short-lived discomfort. It typically lasts only a brief time. Though it may not be serious, it could point to an underlying problem in some cases. Acute pain comes on ...

Armpit pain is a common complaint that can have many causes, from mild muscle injuries to swollen lymph nodes and severe skin infections. In most cases, armpit pain isn't a reason to worry, but it can ...

Chest pain can indicate an injury to your ribcage, surrounding muscles, or connective tissue. Pulled muscles, fractured ribs, and arthritis are all potential causes. Your musculoskeletal system ...

Rhomboid muscle pain occurs between the shoulder blades and spine. It may feel like tenderness around the shoulder blade. Risk factors for rhomboid muscle pain include injury and general overuse. The ...

Pain in the triceps most often occurs due to triceps tendonitis. Other possible causes include triceps tears and snapping triceps syndrome. Treatments can depend on the cause. The triceps muscle is ...

Feeling pain under your left breast can be especially worrying. After all, important organs and structures sit on that side of the body, like your heart, left lung, stomach, spleen, oesophagus, ribs, ...