Sir I am 18 years old but I have lose my hair very much can I transplant my hair

You should attain the age of 25 before undergoing hair transplant surgery.

On personal consultation with relevant doctors you can try to learn more about PRP, mesotherapy, lifestyle modifications, or prescription medicines.
This page could help you find relevant specialists - Hair Loss Doctors.

Let us know if you need our guidance on any other issue, or if you have different requirements for the location, take care!