Lost a patch of hair and never got it back

[santosh82]

Hi Guys

I had reasonably good hair until 7 years ago. During a 4 month period i lost a lot of my hair on top of the head and never got it back



I am using lazer comb for 6 months but dosent seem to help much.

Really looking for an advice here. I would like to go for hair transplant but dont know how much it cost.