Edema can be caused by several factors, including:
Heart failure: When the heart is unable to pump blood effectively, fluid can accumulate in the lungs and peripheral tissues. Kidney disease: Impaired kidney function can lead to fluid retention as the kidneys are less able to remove excess fluid from the body. Liver cirrhosis: Liver damage can lead to a decrease in albumin production, causing fluid to leak into surrounding tissues. Venous insufficiency: Poor blood flow in the veins can lead to fluid buildup, commonly in the lower extremities. Lymphatic obstruction: Blocked lymphatic vessels can result in localized swelling, known as lymphedema. Medications: Certain medications, such as calcium channel blockers and nonsteroidal anti-inflammatory drugs (NSAIDs), can cause fluid retention.