Back acne, or “bacne,” is common and often caused by hormones, sweat, tight clothing, diet, or genetics.
To prevent and treat it, keep your back clean with gentle cleansers, exfoliate lightly, wear breathable clothing, shower after workouts, and maintain a healthy diet. Spot treatments and clean bedding help too.

Natural remedies like tea tree oil, aloe vera, or diluted apple cider vinegar can provide relief, but persistent or severe cases should be checked by a dermatologist.