Will i become impotent aftr 1 or 2 short(6-8 week) cycle of steroids.i m using sustanon 250 (500) mg ew nd oxandrolone and winstrol 20 mg each evryday?

No: Anabolic steroids have significant adverse effects on long term use. Short term use for a specific indication when carefully monitored by a physician should be safe.

Impotence: Impotence can result from poor blood supply to your penis and you should check that with a urologist. You should also have your doctor check your testosterone level which may be altered (not often) with use of steroids.