Forum Recent Posts REGISTER LOGIN Forums Richard and the Boy... PUBERTY General Discussion What causes acne? What causes acne? Last Post RSS Dr. Nadine Pierre-Louis, LMFT (@than0s56xt) Member Admin Acne is a skin condition that causes spots or pimples. These blemishes can appear on your face, shoulders, back, neck, chest, and upper arms. Quote Posted : 28/05/2019 7:12 pm Share: