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Heart failure

1-minute read

Heart failure occurs when the heart muscle has become too weak or too stiff to pump blood through the body as effectively as normal.

Breathlessness or shortness of breath, loss of appetite, feeling very tired, weight gain and swollen legs, ankles, belly or feet, tiredness, dizziness and coughing are the main symptoms of heart failure.

Sometimes the symptoms of heart failure can develop quickly (acute heart failure). However, they usually develop gradually, over time (chronic heart failure).

Heart failure does not usually have a single cause. There are a number of health conditions that increase your risks of developing heart failure including:

Sometimes an overactive thyroid gland (hyperthyroidism) can also lead to heart failure.

In most cases, heart failure is a lifelong condition that cannot be cured.

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Last reviewed: July 2018


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Heart failure

Heart failure occurs when the heart muscle has become too weak to pump blood through the body as effectively as normal.

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The heart is designed as a muscular pump to push blood around the body. Heart failure is a condition where the heart cannot pump enough blood to match what the body needs.

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