Why are my feet and legs swollen?
Disease description:
I sat for an entire afternoon without moving, and when I stood up, I noticed some swelling in my feet and legs. Why is this?
Doctor's answer (1)
Dr. Chen Jian
Swelling of the feet and legs, known as lower extremity edema, is characterized by the abnormal accumulation of fluid in the interstitial spaces of the body. Possible causes include:
1. Prolonged standing or walking: This can lead to fatigue of the lower limb muscles and impaired blood circulation, resulting in swelling of the feet and legs.
2. Local injury: Such as fractures or sprains, which can cause fluid accumulation in the injured area and lead to swelling.
3. Varicose veins: Varicose veins cause blood to accumulate in the veins, leading to vascular dilation and impaired venous return, which can result in swelling of the feet and legs.
4. Heart failure: In heart failure, cardiac output decreases and venous return is impeded, causing blood to pool in the venous system of the lower limbs, leading to edema.
5. Cirrhosis: In cirrhosis, the liver produces less albumin, reducing plasma colloid osmotic pressure. This allows fluid to leak from blood vessels into the interstitial spaces. Combined with the effects of portal hypertension, it can lead to ascites and lower extremity edema.
