Penile trauma is an uncommon but potentially serious injury presenting to pediatric emergency room. Strangulation injuries of the penis can be self-inflicted or occur accidentally. However, self-inflicted strangulation of the foreskin in children is rare. This is a case of 7-year-old uncircumcised boy who himself tied foreskin of prepuce with a cotton thread. The thread was cut and circumcision performed to remove the damaged foreskin.