Most people think of chest pain or shortness of breath as the main warning signs of heart disease.
However, a long-lasting cough can also be an important symptom, especially in people with congestive heart failure (CHF).
Because this condition often develops slowly, recognising unusual symptoms early may help people receive treatment before the disease becomes more serious.
Congestive heart failure does not mean the heart has completely stopped working. Instead, it means the heart has become too weak or too stiff to pump blood around the body as effectively as it should.
As a result, blood and fluid begin to build up in different parts of the body, especially the lungs, legs, and abdomen.
The heart and lungs work closely together to deliver oxygen-rich blood throughout the body. When the heart cannot pump efficiently, blood backs up into the blood vessels of the lungs. This causes fluid to leak into the lung tissue, making it harder to breathe and often triggering a persistent cough.
For many people with heart failure, the cough becomes worse at night or when lying flat in bed. When a person is standing or sitting, gravity helps move some of the extra fluid towards the lower body.
When lying down, that fluid shifts back towards the chest and lungs, increasing congestion and making coughing and breathing problems more noticeable.
The cough may be dry, but some people produce white or pink, frothy mucus. This can be a sign that fluid has collected inside the lungs, a condition known as pulmonary oedema. Pulmonary oedema can become a medical emergency if breathing becomes very difficult and should be assessed by a healthcare professional immediately.
A cough caused by heart failure is rarely the only symptom. Many people also notice increasing tiredness, shortness of breath during everyday activities, swelling in the feet, ankles, legs, or abdomen, and rapid weight gain caused by fluid retention. These symptoms often develop gradually and may become worse over weeks or months.
Doctors diagnose congestive heart failure using a combination of medical history, physical examination, blood tests, heart scans, chest X-rays, and other investigations. Early diagnosis is important because treatment can reduce symptoms, slow the progression of the disease, and improve quality of life.
Treatment usually includes medicines that help the heart pump more effectively and reduce extra fluid. Diuretics, often called water tablets, help the body remove excess fluid through urine, reducing congestion in the lungs and making breathing easier.
Doctors may also recommend eating less salt, staying physically active as advised, maintaining a healthy weight, and carefully managing other conditions such as diabetes or high blood pressure.
Although a cough may seem like a minor problem, it should never be ignored if it is accompanied by other signs of heart failure. Paying attention to these symptoms and seeking medical advice early can help prevent complications and reduce the risk of hospital admission.
Understanding that a persistent cough can sometimes be linked to the heart rather than the lungs may help people recognise congestive heart failure sooner.
Early medical care, healthy lifestyle changes, and appropriate treatment can improve symptoms, protect heart function, and help people live longer and healthier lives.
If you care about heart health, please read studies about how eating eggs can help reduce heart disease risk, and Vitamin K2 could help reduce heart disease risk.
For more health information, please see recent studies that olive oil may help you live longer, and Vitamin C linked to lower risk of heart failure.
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