My husband is complaining that he smells like onions if he sweats he doesn't eat that many onions is this a medical issue is it a sign of a internal i?

Eccrine Bromhidrosis: The medical term for this is eccrine bromhidrosis. It is rarely due to an internal condition, but a thorough physical exam should be performed to rule out any infection or metabolic disease. If the husband is the only one who can smell the odor, then special attention needs to be placed on his nasal passages, as there may be an infection there that only he can smell. History is important too.