Why Chest Pain Happens

Chest pain is one of the most common reasons for emergency room visits and one of the most important symptoms to take seriously. It can originate from the heart, lungs, esophagus, muscles, ribs, or even anxiety — making accurate diagnosis essential.

Cardiac causes include heart attack (myocardial infarction), angina pectoris, pericarditis, and aortic dissection. These are life-threatening and require immediate medical attention. Classic heart attack pain is described as a heavy pressure or squeezing sensation that may radiate to the left arm, jaw, or back, often accompanied by sweating and nausea.

See also: Chest Tightness: Cardiac vs Non-Cardiac

Non-cardiac causes are actually more common in the general population. GERD (acid reflux) causes burning chest discomfort. Costochondritis (inflammation of rib cartilage) produces sharp pain that worsens with pressure. Pulmonary embolism causes sharp chest pain with sudden shortness of breath. Anxiety and panic attacks can produce chest tightness that is indistinguishable from cardiac pain without testing.

Any new chest pain, especially at rest, with exertion, or accompanied by shortness of breath, sweating, or radiating pain, warrants emergency evaluation. Do not self-diagnose chest pain — use AI clinical analysis as a first step to understand possible causes, then seek professional care.

See also: Back Pain Causes: What's Really Hurting