Anabolic steroids can cause the development of acne. However, the extent to which it is experienced can be due to a number of varying factors, with the particular steroids and exact dosages used being primary. The skin´s sebaceous glands have a particularly high affinity to Dihydrotestosterone, which is an androgen the body naturally produces from testosterone via the enzyme 5-alpha Reductase. Increased sebaceous gland activity promotes oily skin which can combine with bacteria and dead skin (normal wear and tear) eventually causing pores to become clogged more quickly than the body can cleanse them. This of course, is preventable by using only particular steroids, cleansing the skin regularly, and perhaps using a topical anti-androgen.
I am in utter tears right now. My 9 yr old Vizsla that we adopted in June was given steroids for a rash she developed. It wasn’t much of a rash. She had gone from being a city dog to a country dog. We had been treating it with Apple Cider Vinegar and some essential oils. Our vet told us that is dangerous and prescribed her steroids. Immediately she begin urinating everywhere and losing weight. Three weeks later she has diabetes. Two months later she is now blind from cataracts. And no one, not one person will tell me how and why she turned so quickly. She was an active happy dog.