Definition: The term "serosanguinolent" is a medical condition that occurs when red blood cells, specifically platelets, are damaged or destroyed. This can lead to bleeding and sometimes complications from this injury. Serous, which is a type of blood vessel in the body, is a part of the blood clotting process. In the case of a serosanguinolent, the damage to the red blood cells may cause a clot to form in the suture or other vessel lining