What is a common cause of congestion in congestive heart failure?

Fluid retention is a common cause of congestion in congestive heart failure because the heart's ability to pump blood effectively is compromised. In congestive heart failure, the heart does not pump blood as well as it should, leading to increased pressure in the heart and the blood vessels. This pressure causes fluid to leak from the blood vessels into the surrounding tissues, resulting in edema (swelling) and congestion, particularly in the lungs and extremities.

As a consequence of this fluid retention, patients may experience symptoms such as shortness of breath and swelling in the legs and abdomen. The congestion can also indicate that the heart is unable to manage the return flow of blood effectively, which further exacerbates the condition. Managing fluid balance is a critical aspect of treating congestive heart failure to alleviate congestion and improve the patient's overall condition.