What reason is a leg swollen

summary

I have not been very clear, my legs often appear edema, after looking for the reasons, finally know what causes the leg swelling. What's the reason for a swollen leg? Let me tell you.

What reason is a leg swollen

First: leg swelling means edema and edema of lower limbs. There are many reasons for leg swelling. 1. Renal edema. Suffering from acute nephritis, chronic nephritis or nephropathy, because the blood flow of the kidney is reduced, sodium and water retention, capillary permeability increases, and the amount of protein lost in urine is too much. That is, the colloid osmotic pressure of the plasma will decrease, and the interstitial fluid will be aggregated and cause edema, which is also * leg swelling.

Second: leg swelling may also be caused by cardiac edema. When right heart failure occurs in various heart diseases, the venous blood can not flow back smoothly, resulting in the increase of venous pressure, body fluid leakage into the tissue space, causing leg swelling. There is also hepatic edema. Liver damage, obstruction of portal venous return, increased portal venous pressure, and low plasma albumin in liver failure may cause leg swelling.

Third: malnutrition may also cause leg swelling. There is also the obstruction of veins and lymphatics in the lower limbs, which leads to the body fluid entering into the tissue space, and the lower extremity embolic phlebitis, lymphadenitis, filariasis, pelvic or lower extremity tumors oppress the veins. It can be seen that there are many reasons for leg swelling, which can be a symptom of systemic diseases, or one of the symptoms of local diseases of lower limbs.

matters needing attention

Usually should pay more attention to, feel unwell, timely to the hospital, in order to avoid aggravation.