Acne on the back may be a result of certain skin disorders such as acne, folliculitis, furunculosis folliculitis. Endocrine disorders are endocrine disorders caused by various factors. The diseases that present the symptom of back acne are not always related to endocrine disorders. 1. Acne: It is caused by factors such as abnormal androgen levels and increased sebum secretion, and endocrine disorders may lead to changes in the above factors, resulting in the appearance of pimples, papules, pustules and other symptoms, which can manifest as back acne. 2. Folliculitis: it is an inflammation triggered by bacteria and other pathogens infecting the hair follicles, which has nothing to do with endocrine disorders, and appears as red pimples or pustules, and thus has the phenomenon of back acne. 3. furfurfur sporotrichosis folliculitis: is a kind of Malassezia bacteria in the hair follicle overgrowth caused by the follicle and its surrounding inflammatory lesions, and endocrine disorders have nothing to do with, the performance of dense or scattered hemispherical follicular pimples, the patient will have back long acne symptoms. There are many causes of back acne, not necessarily endocrine disorders, it is recommended that patients go to the hospital in a timely manner, to clarify the cause of the disease.