Description
Swelling and irritation of the thin, saclike tissue that surrounds the heart, called the pericardium.
Overview
Pericarditis has many possible causes. These include an immune system response after a heart attack, viral infections, chest injuries and conditions such as lupus. Sometimes the cause isn't known.
Symptoms
The most common symptom is sharp, stabbing chest pain. The pain may move to the left shoulder and neck. Other symptoms can include fatigue, cough, fever, shortness of breath, and a fast or pounding heartbeat.
Treatments
For mild pericarditis, rest and pain medicines sold without a prescription may be the only treatment needed. If the condition is serious, treatment can include prescription medicines and, rarely, surgery.
Last Updated: May 5th, 2026
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