Do steroids cause gynecomastia?
On One Hand: Steroids Can Cause GynecomastiaUsing anabolic steroids is one of the possible causes of gynecomastia, a condition that leads to an increase of the size of breasts in men, according to the Mayo Clinic.On the Other: Gynecomastia Has Other CausesGynecomastia can be caused by the use of anabolic steroids, but it has other causes as well. These include hormone changes (either natural or caused by disease) and medications that affect hormones, some illegal drugs (amphetamines, marijuana and heroin), alcohol, as well as genetic problems and tumors, according to the Mayo Clinic and Medline Plus.Bottom LineGynecomastia can be caused by anabolic steroids, but there are many other causes.