I had undescended testis surgery when i was 6 months. now i am 27. i jave a small penis and i look much younger than what i am supossed to be w is pro?

Question is unclear: Not sure what "w is pro" is asking but you should have a testosterone level drawn. Odds are good that you're normal and that your penis size is normal. You're lucky to look younger and will appreciate that more in about 20 to 30 years.

See below: Your question is unclear. It sounds like you are concerned that you have hypogonadism. This requires a medical evaluation to obtain a diagnosis and treatment plan. It can be very complicated. If present it is not likely related to your testicular maldescent alone.

Consult endocrinolog: Have you gone thru puberty? You are post pubertal if you have developed pubic hair and your voice has deepened. Endocrinologist will check your testosterone levels to see if you have a deficiency. This could be corrected. Good luck.