This article discusses the several varieties of "buried" penis (usually a complication of circumcision).

Microphallus - Microphallus, or micropenis, is defined as a morphologically normal penis, including a penile urethra, with a stretched length less than 2 standard deviations (SDs) below the mean for age. The average stretched penile lengths in preterm (30 weeks gestation) and term infants are 2.5 cm 0.4 cm, and 3.5 cm 0.4 cm, respectively. Tuladhar et al developed the following formula to ...