Can You Donate Blood if You Smoke Weed? Can You Donate Blood If You Smoke? Our Blood Institute Can Smoking Marijuana Increase Stroke Risk? Health Matters NYP How a 14 year old boy became addicted to Spice through vapes Yes, you can donate blood if you smoke or consume cannabis. The recipient of the blood will not get high, another common MYTH. All donors go through the same health Dos and Don'ts After Donating Blood SLMA