1, abnormal penis, length in erect state <10cm; The length is less than < 5.5cm in the non-upright state.
2. It is difficult or impossible to have a normal sex life, or it is impossible to complete upright urination.
3. Most of them are accompanied by hypoplasia of male accessory sexual characteristics or other malformations of reproductive organs.
4. Most of the sex chromosomes are normal, and the karyotype is 46, XY. If the penis is short, it can be improved by penis lengthening. You can consult an expert online and get a satisfactory answer.