Steroids can have long-lasting and sometimes irreversible side effects on the body. Anabolic steroids have been linked to increased cholesterol, stroke and blood clots, urinary and bowel problems, and problems with the musculoskeletal system. Since steroids are a hormone, much like testosterone, the effects on sex characteristics can be far reaching, causing a kind of hyper-masculinity in young men. They can also cause male-pattern baldness and shrinking of the testicles. The excess of testosterone can also have feminizing effects on young men, such as breast development. (Jerry Adler, 2004)
The legal status of anabolic steroids varies from country to country. In the ., anabolic steroids are listed as Schedule III controlled substances under the Controlled Substances Act , which makes the possession of such substances without a prescription a federal crime punishable by up to seven years in prison.  In Canada, anabolic steroids and their derivatives are part of the Controlled drugs and substances act and are Schedule IV substances, meaning that it is illegal to obtain or sell them without a prescription. However, possession is not punishable, a consequence reserved for schedule I, II or III substances. Those guilty of buying or selling anabolic steroids in Canada can be imprisoned for up to 18 months. Importing or exporting anabolic steroids also carry similar penalties.  Anabolic steroids are also illegal without prescription in Australia,  Argentina, Brazil, and Portugal,  and are listed as Schedule 4 Controlled Drugs in the United Kingdom.