When you pee in a cup for a physical will marijuana show up?

Only with drug test: If the urine is tested for drugs, then marijuana will show up. It won't show up in a regular urine analysis, only if a drug test is done on the urine.

If they look: If a chronic or recent user is tested for drugs it will show up in the pee. However, it is not looked for in most settings and does require an added expense.In most locations in this country you must sign a waver allowing a drug test to be done. (right against self incrimination) If this is a pre-employment physical it may be part of the required screening for the job.