What causes swelling of the left leg?

There are a number of possible causes for swelling in the left leg, including:

- Deep Vein Thrombosis (DVT): This occurs when a blood clot forms in a deep vein, usually in the leg. It can cause swelling, pain, and tenderness in the affected leg, and can be dangerous if the blood clot travels to the lungs.

- Lymphedema: This condition occurs when there is a build-up of fluid in the soft tissues of the body, often in the legs. It can be caused by a variety of factors, including chronic venous insufficiency, infection, obesity, and certain medical conditions.

- Baker's Cyst: This is a fluid-filled sac that forms behind the knee joint. It can cause swelling, pain, and stiffness in the back of the knee and calf.

- Cellulitis: This is a bacterial infection of the skin and underlying tissues. It can cause swelling, pain, redness, and heat in the affected area.

- Bursitis: This is an inflammation of the bursa, a fluid-filled sac that helps to cushion bones, tendons, and muscles near joints. It can cause swelling, pain, and stiffness in the affected joint.

- Injury: An injury to the leg, such as a fracture, sprain, or strain, can cause swelling, pain, and bruising.

If you are experiencing swelling in your left leg, it is important to see a doctor to determine the cause and receive appropriate treatment.