A four-month undercover investigation by ABC News affiliate KNXV in Phoenix, Ariz., reveals that local medical clinics are all too willing to improperly prescribe steroids. 

Even though steroids can only be prescribed to treat legitimate medical conditions, the ABC15 investigation found that doctors at the Revolution Medical Centers were quick to give the drugs to an undercover patient who said he was only looking to increase his size and strength.

According to the report, the patient not only received a prescription for steroids from clinic doctors, he also was shown how to inject the drugs for maximum effect. The undercover patient was able to buy a bag of steroids and supplies for about $2,000 at a clinic pharmacy, where a representative told him refills could be shipped overnight "wherever you're at."

Read and Watch KNVX's Full Report.

In a letter to KNXV, Revolution Medical Centers denied engaging in any illegal conduct.