A collagen mesh sheet is a medical dressing made of collagen, a protein found in connective tissues, that is meshed or woven to allow for fluid drainage and tissue integration. It's commonly used for wound care, particularly for burns, skin grafts, and chronic wounds, due to its ability to promote healing and prevent infection. Primarily made from collagen, a protein that is a major component of skin, tendons, and other connective tissues. The mesh design allows for drainage of wound fluids, preventing buildup and promoting a healthy healing environment.