What is the cause of leg edema

Edema can occur in any part of the body, and leg edema is also relatively common. Do not underestimate the symptoms of leg edema, as these symptoms may also be related to certain serious diseases. The causes of leg edema are rather complicated and are mainly caused by disease factors, so you must pay attention to treatment. So what are the causes of leg edema?

1. Disease factors

Heart failure and leg phlebitis are the two main causes of chronic (long-term) leg swelling. According to clinical practice, phlebitis will only cause swelling of one of the patient's legs, while heart failure causing congestion will cause swelling of both legs; phlebitis will cause pain, while swelling caused by heart failure will not be painful; various diseases that cause leg swelling have their own different pathogenesis and characteristics.

2. Heart disease, etc.

Diseases such as heart disease, high blood pressure, viral infection or heart valve disease make the myocardium weak and powerless. At this time, the heart cannot smoothly deliver blood to the lungs. The blood begins to flow back into the veins and then converges into the organ located under the heart - the liver, causing the liver to become congested and swollen. If the condition does not improve, blood may eventually back up into the leg veins and cause leg swelling.

3. Kidney Yang Disease

People with severe kidney disease will experience swelling all over the body, including the legs, face, and fingers. The reason for the systemic swelling is that too much protein is lost in the urine.

4.

More severe liver disease in later stages can cause leg swelling by two mechanisms. One is that liver cells are damaged and cannot produce enough protein, resulting in the same situation as protein loss caused by kidney disease; in order to balance the protein content in the blood vessels and the tissues around the blood vessels, fluid in the blood will flow into the tissues and cause tissue swelling. Another possibility is scarring of the liver, which prevents blood flowing from the legs to the heart from passing through the liver, causing blood reflux. Additionally, enlarged glands or tumors in the abdominal cavity may compress veins and cause leg swelling.