The glans is usually turned out is a normal performance, not a disease condition. The normal form of male external genitalia should glans exposed outside, foreskin is located near the glans coronal groove, when men enter puberty, from the normal state of prepuce and extended to glans exposed in the outer side of the foreskin, because in the development process the growth rate of the penis is greater than the growth rate of the foreskin. This can be a natural retreat of the foreskin, while the penis extends forward will be turned in the foreskin of the outer head, so there are two benefits: 1, can reduce the local secretion residue or urine residue, such as after urination can keep the local clean, urine stains will not remain within the foreskin to form urine scale. 2, the glans is exposed outside easy to receive external stimulation, such as receiving the friction of underwear, underwear, after a long time can cause The surface sensitivity of the glans is reduced, which can effectively reduce the probability of premature ejaculation. So the glans is usually turned out in adults is a normal performance, not a state of disease.