Preputioplasty or prepuce plasty, also known as limited dorsal slit with transverse closure, is a plastic surgical operation on the prepuce or foreskin of the penis,[1] to widen a narrow non-retractile foreskin which cannot comfortably be drawn back off the head of the penis in erection because of a constriction (stenosis) which has not expanded after adolescence.

Preputioplasty is a treatment for phimosis in the alternative to circumcision and radical dorsal slit Preputioplasty may be performed by Z-plasty, also used in reconstructive surgery to loosen constricting scar tissue following traumatic burns.

However, Y-plasty and Z-plasty require a degree of surgical sophistication that physicians in general practice may lack.

In the alternative to suturing, "[h]aemostasis [has been successfully] performed [in children] with a heated probe using the flame of an alcohol lamp or with bipolar electrodiathermy.

If incisions are placed on the sides of the phimotic ring, the ultimate cosmetic result is better.