Health Articles | March 7, 2008 � It appears on chest, back, and hips. Back acne is often quite stubborn. In severe cases, many nodules and cysts grow on the back, causing a lot of pain and inflammation. It is harder to treat acne o... � It appears on chest, back, and hips. Back acne is often quite stubborn. In severe cases, many nodules and cysts grow on the back, causing a lot of pain and inflammation. It is harder to treat acne on the back than on the face.What Causes Back Acne?Like acne on the face, back acne is basically caused by hormonal imbalance. It is to a certain degree hereditary in nature. However, perspiration and tight-fitting clothes play a villainous role in causing acne on the back. Hence we see that physically active people suffer from it more often than others showing less physical activity. Tight-fitting clothing does not allow the perspiration to evaporate easily. This trapped sweat, mixed with the oil secreted by the sebaceous glands, causes the skin pores on the...