Is 'roid rage' real?

Short answer

Yes, but in some people. Of 50 men given far more testosterone than normal for 6 weeks, 8 (16%) showed manic-like symptoms and 42 barely changed. A 5.0 times higher risk of violent crime shrank to 1.6 times once other drug abuse was taken into account.

Is 'roid rage' real?
'Steroids → testosterone surge → explosive anger' — does this formula hold?
'Roid rage' is the idea that steroids make people quick to anger and violent. We checked separately whether users really are more violent, and whether the drug itself is the cause.
Are users actually more violent?
There was a link, but a small one
A 2024 analysis pooling 14 studies (137,055 people) found a small correlation of 0.21 between steroid use and violence. Most studies did not check whether steroid use came first or the violence did.
What about other drugs?
A 5.0 times higher risk of violent crime shrank to 1.6 times
Linking survey answers from 10,365 people in Sweden to crime records, those who had used steroids had a 5.0 times higher risk of a violent crime conviction. But once other drug abuse was taken into account, it fell to 1.6 times and was no longer a statistically meaningful difference.
In trials where people were actually injected?
Only self-reported aggression rose, slightly
An analysis pooling 12 randomized trials (562 people) found that steroids slightly raised self-reported aggression. Aggression as seen by others did not differ, and even that small rise disappeared when only trials with higher doses and longer use were pooled.
A trial where anger did not rise
43 people, anger scores unchanged over 10 weeks
43 people received injections of far more testosterone than normal, or a fake shot, for 10 weeks. All 5 anger measures showed no difference, and mood and behavior as rated by partners or family did not change either.
Most stay the same, a few change a lot
8 of 50 (16%) showed manic-like symptoms
56 people took testosterone and a fake shot for 6 weeks each. Of the 50 who reached the highest dose, 42 (84%) showed almost no mental change, 6 (12%) had mild and 2 (4%) had marked manic-like symptoms. Aggressive responses in a provocation game rose too. Tests before the trial did not single out these 8.
Where the risk piles up
Users who cannot stop, and trenbolone users
In a Norwegian study of 139 people, dependent users who could not stop steroids were more aggressive than non-dependent users and regular lifters. In a survey of 1,146 people who used in the past 12 months, the 237 who used trenbolone more often worried about irritability and mood swings.
Bottom line: roid rage hits some, not all
Not everyone, but 16% and dependent users
In the 6-week trial, 42 of 50 barely changed, but 8 (16%) showed manic-like symptoms, and no test singled them out beforehand. The 5.0 times higher violent crime risk became 1.6 times once other drug abuse was counted. Aggression piled up in dependent users and trenbolone users.