Silent Heart Attack Symptoms

A heart attack does not always cause the severe chest pain shown in movies or commonly described in health discussions. Some people experience silent heart attack symptoms that are mild, unusual, or difficult to recognize. Others may have very few symptoms and only discover that they had a heart attack later during a medical examination or heart-related test.

A silent heart attack is still a heart attack. It occurs when blood flow to part of the heart muscle is reduced or blocked, potentially causing damage to the heart. Because symptoms can be overlooked, understanding the warning signs and risk factors is important.

What Is a Silent Heart Attack?

A silent heart attack is a myocardial infarction that causes few, mild, or unrecognized symptoms. Unlike a typical heart attack, a person may not experience obvious chest pain or may mistake the symptoms for indigestion, tiredness, muscle discomfort, or another minor health problem.

The underlying problem is still reduced or blocked blood flow to the heart. If the affected area does not receive enough oxygen, heart muscle can become damaged.

A silent heart attack should therefore not be considered less serious simply because the symptoms are mild.

What Are the Silent Heart Attack Symptoms?

Recognizing silent heart attack symptoms can be challenging because they may not seem related to the heart.

Possible symptoms include:

• Unusual or persistent fatigue
• Mild chest discomfort or pressure
• Shortness of breath
• Indigestion or heartburn
• Nausea
• Dizziness or lightheadedness
• Cold sweating
• Discomfort in the back, shoulder, arm, neck, or jaw
• Unexplained weakness
• A feeling of being unusually unwell

Some people may have no symptoms that they recognize as a heart attack at all. The American Heart Association notes that silent heart attacks can involve mild, unusual, or unnoticed symptoms such as fatigue, indigestion, or discomfort in the back or jaw.

Can a Silent Heart Attack Cause Chest Pain?