Users can also have sexual problems. Large oral doses can cause stomach-ache, nausea and vomiting. Long-term Effects Teens using high doses may have their growth permanently stunted. Females often experience increased facial and body hair, enlarged clitoris, reduced breast size, irregular periods, deepened voices, and male-pattern baldness. Many of these effects are irreversible.
Males experience shrinking testicles, painful enlarged breasts, and decreased sperm count.
Temporary infertility and difficulty achieving an erection are also common. If you take high doses for a long time, you risk rupturing tendons. You can develop blood clots, stroke, heart disease and heart attacks, liver disease and cancer. Steroids and Addiction Steroid users do not appear to develop tolerance. This means that larger doses are not needed over time to achieve the same effects.