Is Penis Enlargement Surgery Possible? The most common male penis enhancement procedures and methods include lengthening and enlarging. These techniques can be performed either as separate surgeries, together in a single surgery, or in a two-step extension procedure followed by an enlargement procedure six to 12 months later. Most men are good candidates for penis enlargement surgery to enlarge and enlarge their penis. Genital surgery may not be suitable for men with diseases such as cancer, diabetes or HIV.