Myocarditis refers to inflammation of the muscle of the heart (known as the myocardium), leading to damage or destruction of the heart muscle.
Signs and symptoms of myocarditis include
- chest pain,
- chest discomfort,
- shortness of breath,
- heart rhythm disturbances (arrhythmias),
- fever,
- chills,
- fatigue,
- swelling, and
- palpitations.
Other associated symptoms are nonspecific, particularly in children and infants, and can include
- joint pains,
- rash,
- diarrhea,
- cough,
- malaise, and
- poor appetite.
Myocarditis is also a known cause of sudden death in young adults.
Causes of myocarditis
Myocarditis has a number of possible causes, including infections (bacteria, viruses, or fungi), autoimmune conditions, certain medications, toxins, and some diseases like lupus or Wegener's granulomatosis. In many cases, myocarditis develops without a known cause (called idiopathic).
Other myocarditis symptoms and signs
- Arrhythmias
- Chest Discomfort
- Chest Pain
- Chills
- Cough
- Diarrhea
- Fatigue
- Fever
- Joint Pains
- Malaise
- Palpitations
- Poor Appetite
- Rash
- Shortness of Breath
- Swelling
Main Article on Myocarditis Symptoms and Signs

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