I had a itchy frecle type mole on my shoulder removed a while back biopsy came back negative . but im concerned again as on my back i gt hard itchy sk?

Scar tissue: Over a joint or area of thich skin, you can develop thickened itchy s ar tissue. Bio oil or Mederma may decrease the thickness and relieve the itching. If not see doctor for dilute kenalog (triamcinolone). Injection to soften scar.

Itchy skin : If you are having itchy skin at the biopsy site it could be part of the healing process and subsequent scar formation (depending on when the removal occurred . Since the condition is not improving see your dermatologist to make sure the area is ok and not more serious.

Get checked: Unlikely to be a problem. If contniues to itch better to get checked.

Itching: After a biopsy the site often itches during the healing process. You should however discuss your concerns with your friendly dermatologist.