Welcome to HealthcareMagic forum,
At 21 ,you are too young for hair transplantation
.What you have is androgenetic alopecia which is progressive thing and follow familial pattern too.
Hair transplantation is a good and safe procedure and its the only permanent solution for baldness.But since you are loosing hair at this moment ,then you should try take some medicines to stop hair fall
.Consult a dermatologist
who can prescribe you good medicines for hair loss.Minoxidil
and fenestride works good in such cases.
You can also visit my website for details on hair transplantation www.skinhairclinic.com.