Causes of edema

The cause of the water accumulation in the tissues (edema) is a fluid leakage from the vascular system. The relationship between filtration (leakage) and reabsorption (reabsorption) is shifted in favor of filtration. More fluid remains in the tissue and oedema develops. Edema is often the result of an underlying disease, e.g. renal failure (kidney weakness) … Causes of edema