Which medicine should I have to take for making my...

penile enlargement ?
If your penis length is not at the normal level during an erection meaning that it is less than 7 cm, medical intervention can be done through some penis enlargement surgeries such as silicone injections or pump implants inside the penis. It is worth noting that the products sold in the market for penis enlargement are not effective as studies have not demonstrated their effectiveness, so it is not recommended to use them
Diagnosis ?
Clinical examination may be done by a urologist to assess your condition. Testosterone analysis
causes of short penis ?
Previous prostate surgery
Old age
obesity
Drinking alcohol
Smoking
outlook ?
it is recommended to see a urologist