Kidney Injury in Anabolic-Steroid Users
Focal segmental glomerulosclerosis and the high-protein/AAS load
Evidence grade 3 of 5, Mixed. Read how the Atlas grades evidence.
The written rationale for this grade is still being prepared.
- FDA
- Not applicable (harm documentation)
Reference only. Not medical advice.
What can go wrong
Proteinuria, declining kidney function, and in severe cases renal failure. Often compounded by NSAIDs, dehydration during contest prep, and high-dose supplements.
This is something to take to a clinician. The Atlas can tell you what is known about kidney injury in anabolic-steroid users in general. It cannot tell you what is happening in your body, and the difference matters most for exactly the symptoms that bring people to this page.
Long-term high-dose AAS use is associated with kidney damage, most notably focal segmental glomerulosclerosis (FSGS). A case series by Herlitz and colleagues described bodybuilders with very high muscle mass on long-term AAS who developed proteinuria and FSGS, with some improvement after stopping. Proposed mechanisms include glomerular hyperfiltration from extreme body mass and protein intake, direct androgen effects, plus nephrotoxic insults from NSAIDs, dehydration (contest prep), and other drugs. It is a serious, under-recognized organ harm beyond the more discussed cardiac and hepatic risks.
Bodybuilder-sized bodies can outstrip what the kidneys can filter.
What people take it for
These are the reasons people give for taking it. They are not effects it has been shown to have.
Safety in detail
Anabolic-steroid-associated kidney disease can progress to renal failure; it warrants nephrology evaluation. Physician oversight is essential.
Replacement is not the same as a cycle
This is a harm of long-term high-dose AAS use combined with extreme body mass and protein intake, not of physiological TRT.
What has to be monitored
The bloodwork this needs, and the reason it belongs with a clinician rather than a website.
- Urinalysis / proteinuria
- Serum creatinine / eGFR
- Blood pressure
What people get wrong
Often saidSteroids don't touch the kidneys
ActuallyA documented FSGS case series in long-term AAS-using bodybuilders shows real glomerular injury, partly reversible with cessation.
Who profits, and who pushes back
Nobody is named here yet, because we have not done that work on this entry. Read that as unfinished. Somebody almost certainly sells this, and somebody almost certainly disputes it. Assume both until we have checked.
At a glance
- Lesion
- Focal segmental glomerulosclerosis (FSGS)
- Case series
- Herlitz et al.
- Drivers
- Extreme mass, hyperfiltration, dehydration, NSAIDs
What this entry does not yet cover
What follows is unfinished work on our side, not a finding about Kidney Injury in Anabolic-Steroid Users. A short entry is not a safe entry.
- Timeline. We have not built the dated record of research and regulatory events.
- Cost and market. We have not documented what it sells for or who sells it.
- Supply chain. We have not mapped where it is made.
- Who uses it. We have not documented the user groups.
- What could change. No forward-looking summary yet.
- How it compares. We have not set it against the alternatives.
- Children and teenagers. We have not checked what is known about younger people.
- Where we land. We have not taken a position on this yet.
Sources
The studies below are named and described, but not linked. You cannot open them from here and check our reading against them, which means this page is our summary of the literature rather than a document you can verify. Weigh it accordingly until the links exist.
The studies that matter
Herlitz et al.2010
Case series of AAS-using bodybuilders with FSGS and proteinuria; some improvement after discontinuation