Plasma is the liquid component of your blood. Also known as blood plasma, it makes up about 55% of your blood and has a light yellow color. When you donate blood, the plasma can be separated out and ...

Plasma is the largest single component of blood. It consists of water, vital proteins, and other substances that play a role in coagulation, immunity, blood pressure, and transporting nutrients.

Donating plasma can cause common but usually minor side effects like dehydration, dizziness, bruising, and fatigue. Some people may experience more serious, but rare, side effects, such as infection ...