Every time I work out at the gym, I notice people using steroids (muscle mass, swelling, acne on the back and shoulders). They're most likely injecting testosterone esters (propionate, enanthate).
For example, at my gym, the trainers do this. I understand their motivation, but I think they're completely unaware of the health consequences. For these guys, I'll try to explain in a non-trivial way the dangers of this "therapy" :
The most important thing to know is that the more testosterone, the shorter the lifespan. Why is this? It's quite simple. These people have problematic blood profiles—high blood pressure, high cholesterol, and a high hematocrit. Their blood vessels and heart simply don't cope. Furthermore, these people are more prone to reckless behavior (fights, motorcycles, taking unnecessary risks, etc.), which sometimes leads to death.
External testosterone makes a man not only stupid but also sterile. There's an interesting paradox here. During puberty, testosterone promotes the development of male reproductive organs. But in adulthood, under the influence of injectable testosterone, no growth occurs; in fact, the testicles atrophy. After all, what's the point of having testosterone if you already have it?
Men with high testosterone levels can have a triad of problems: acne, baldness, and prostate issues. For some reason, testosterone promotes hair growth on the body and face, but reduces the amount of hair on the head. The sebaceous glands and prostate enlarge, causing problems.
Men who use steroids can "poison" their girlfriends through bodily exchanges (kissing, sex)
. This can harm women by disrupting their menstrual cycles and causing dark hair on their face and body. They can be especially harmful during pregnancy, as I mentioned above .
And here's the most relatively neutral point of all this, which few people know: Girls whose boyfriends used steroids shortly before conception are more likely to have girls
. This is almost an established fact. Just look at the families of Stallone, Ronnie Coleman, and other musclemen.
Links to evidence:
https://pubmed.ncbi.nlm.nih.gov/33503312/
https://pubmed.ncbi.nlm.nih.gov/34899607/
https://pubmed.ncbi.nlm.nih.gov/28782738/
https://pubmed.ncbi.nlm.nih.gov/33292112/
https://pubmed.ncbi.nlm.nih.gov/10332571/
https://pubmed.ncbi.nlm.nih.gov/30089321/