The peniscopy is to examine the glans and foreskin with magnifying lenses.

It can analyze more finely mucocutaneous balanopreputial lesions, and treat them properly.

Research-related injuries to human papillomavirus (HPV) is done, basting the glans and foreskin with dilute acetic acid, and is a painless test . The peniscopy helps guide the treatment of mucocutaneous lesions.

But peniscopy allows also careful study of other inflammatory  balanopreputial lésions (balanitis) and multiple tumors, and their treatment.