Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Transudate
Medically reviewed by Min Clinic Staff | Updated: January 2026
Transudate: A fluid that passes through a membrane, which filters out all the cells and much of the protein, yielding a watery solution. A transudate is a filtrate of blood. It is due to increased pressure in the veins and capillaries that forces fluid through the vessel walls or to a low level of protein in blood serum. Transudate accumulates in tissues outside the blood vessels and causes edema (swelling).