My husband has recently started to get really bad acne breakouts on his back, what can this be from? he is 37 years old

Seek cause: Something as simple as increasing his strength using a bench press can get this started. I'm assuming no new medications or habits, especially not lithium. Many of us men simply have a testosterone surge from time to time. Severe acne usually warrants a systemic antibiotic plus a topical such as Clindamycin with a retinoic acid derivative or benzoyl peroxide. Should be sufficient.

Consider his actions: This can be as simple as a reaction to parabens (chemicals) in his shampoo.Since the suds often drain down the back, it could lead to breakouts.Something as simple as finding a paraben free shampoo could help.