Nickan Research Institute Journal of Renal Endocrinology 2423-6438 6 1 2020 01 01 Gym nephropathy; an emerging disease among athletics e12 e12 EN Elham Ahmadipour Shakiba Hassanzadeh https://orcid.org/0000-0002-5091-5191 Hamid Nasri https://orcid.org/0000-0003-1673-5741 Journal Article 2020 11 11 2020 12 05 Athletes and bodybuilders, both professional and amateurs, use supplements such as an androgenic-anabolic steroid (AAS) worldwide. They are mainly used by males and to increase muscle mass and strength, speed recovery of the muscles, decrease fatigue, reduce muscle damage, decrease abdominal fat, and reform the body to a lean shape. However, these substances usually have some side effects such as renal damage and impairment. Gym nephropathy includes injury to the glomeruli, tubules, or interstitium of the kidneys. Herein, we discuss some of these renal diseases. Prompt diagnosis and treatment of these renal complications are critical to prevent chronic kidney disease.