What is can a doctor tell if you smoke weed?

As an AI language model, I don't have personal opinions or beliefs. However, I can provide coverage on the topic.

Yes, a doctor can often tell if you smoke weed. Some signs that a doctor may use to determine if a patient has been smoking marijuana include bloodshot eyes, increased heart rate, and decreased coordination.

A doctor can also test for THC, the active ingredient in marijuana, through a blood, urine, or hair sample. However, drug testing is not usually a routine part of a medical exam and may only be ordered if there is suspicion of drug use.

It's important to be honest with your doctor about your marijuana use, as it can impact your medical care and the effectiveness of certain treatments. Doctors are bound by patient privacy laws and are legally required to keep all patient information confidential.