Why Is One Leg Swollen While the Other Is Normal?

When one leg is normal and the other is swollen, it is often believed to be related to leg injury, kidney or vascular diseases. Additionally, it could also be caused by prolonged sitting leading to leg swelling. For non-pathological factors causing unilateral leg edema, symptoms can be improved through methods such as soaking feet appropriately. For pathological factors causing leg swelling, improvement can be achieved through targeted treatment.

Generally, systemic diseases such as heart failure or renal failure may lead to swelling in both legs. If this problem occurs only in one limb, it is necessary to consider whether there are vascular issues. For example, if venous return is poor on the swollen side, it is prone to cause unilateral limb swelling.

There are many reasons for leg edema. You can go to the hospital for a venous ultrasonography of the lower limbs to determine whether there is the formation of deep venous thrombosis. It is also necessary to check renal function, liver function, echocardiography, and blood routine to exclude cardiac edema, renal edema, or edema caused by prolonged sitting.

Massage and alternating hot and cold water to soak feet can be used to accelerate blood circulation. Pay attention to raising the legs, avoid sitting for long periods of time to prevent lower limb thrombosis, and maintain a low-salt diet.