Smoking (or vaping) doesn't affect your ability to donate blood. Help us bust this myth by sharing our post. Can you donate blood if you smoke? Can You Donate Plasma if You Smoke Weed? What About Blood? YES, you can donate blood if you smoke or consume cannabis. Let's break the stigma! All donors go through the same health screening. All blood donations are tested for several types Driving After Taking Any Form of Marijuana Is Unsafe Can You Donate Blood If You Smoke? What You Should Know Dr. Karuna Kumar