An occult penis should not usually be circumcised simply by circumcision alone. An occult penis is an abnormality in which the body of the penis has a short appearance and is almost completely hidden within the prepubic soft tissue. Most hidden penises cannot be circumcised alone, because without addressing the problem of the encapsulation of the penile body, cutting off the foreskin alone is likely to result in an even smaller or even completely encapsulated penis, which is detrimental to both morphology and function, and may lead to complications such as infection. Cryptorchid penises require a comprehensive approach, with circumcision performed at the same time as the resolution of the cryptorchid penis. Some patients with cryptorchid penises mostly heal on their own as they age, patients with obesity leading to cryptorchid penises can lose weight to improve their symptoms, and some patients may require surgery. If you are diagnosed with cryptorchid penis, please treat it under your doctor’s supervision and take his or her advice not to perform circumcision without authorization.