1.How much can penis extension surgery extend? Generally 1-5cm, individual difference is very big, hidden penis can even reach more than 7cm, but penis development abnormality and hermaphroditic deformity even no effect at all. The average is 2cm, depending on the internal development. 2.Will there be retraction after surgery? 70% of the time, there will be a proper retraction, which is due to the repair of the own tissues and the pull of the internal scar formation on the back side of the penis. This retraction is fixed in about 4 months. The retraction is about 0.5cm and may be completely ineffective if the internal sutures tear or break. 3.Is it obvious that the weakness and erection are prolonged after the surgery? It is relatively obvious in the soft state, for example, (4-7), with an increase of 75%, and in the erect state, it may be (8-11), with an increase of 38%, because the extended increase will not have the same expansion coefficient as that of the original penis. 4. How to do surgery for an invisible penis? Children’s hidden penis only need to follow the hidden penis correction surgery can be, adult type in addition to hidden correction, combined with shallow suspensory ligament dissociation can be. The effect is obvious. 5.Does it need hospitalization? Penile lengthening routinely requires hospitalization for 3-5 days. 6.Is there any problem with penile displacement and penile stability? After penis extension surgery, the penis will shift downward, and there will be appropriate discomfort when walking in the early morning due to the increase in penis length and downward shift, and there will be no obvious discomfort after adapting to the surgery. There is no effect on the stability of the penis. 7. Is penis extension risky? If you can understand the anatomy of this part in detail and standardized operation, the risk of surgery is not big. However, I have met many cases of surgical failure to repair, and even lead to necrosis of the penis to do reconstruction. In view of this, I have to remind patients to choose the right hospital. The risk is not only in the doctor, also lies in the patient’s own choice. 8, need to do thickening and other incidental surgery. If the penis is relatively small will be recommended to increase penile enlargement, accompanied by erectile hardness is not enough to do vein ligation, premature ejaculation patients with selective dorsal nerve from the segment. 9.Is the scar on the dorsal side of the penis obvious? Individual differences, regular pubic hair can be covered. 10, on fertility, sexual life has no effect on the surgery does not involve reproductive function, for sexual function, the original impotence, premature ejaculation, erection problems, the surgery will be appropriate to improve. Penis lengthening will not cause impotence, premature ejaculation and erection problems. Not designed for the function of such organs.