What condition is characterized by the excessive accumulation of interstitial fluid causing swelling?

The condition characterized by the excessive accumulation of interstitial fluid, leading to swelling, is known as edema. Edema occurs when there is an imbalance in the forces that regulate fluid movement between the blood vessels and surrounding tissues. This can happen due to various factors, including increased capillary permeability, obstruction of lymphatic drainage, or increased hydrostatic pressure.

In the context of massage and therapeutic practices, understanding edema is important because it affects tissue health, circulation, and can influence the techniques used during treatment. Techniques that promote lymphatic drainage or reduce inflammation can be beneficial in managing edema, helping to restore fluid balance and alleviate discomfort associated with swelling.