Hair transplant after 10-15 years?

You need a Master Plan before starting surgery to plan for future balding.  If your planning was done right, you should be able to shave your head for a "normal" look.  You can also consider further surgery or SMP (or both) depending on planning and your ultimate (realistic) goals.

Great Question! First, I tell most patients that they should be on Propecia to low or stop the progression you are worrying about. I have been in practice 23 years, and I have seen two sets of patients, those that stayed on the medication who looked great and did not lose most of their hair after 10+ years, and those their either did not take the medications or stopped them, who continued to bald asking for either more transplants or scalp micropigmentation if they depleted their donor area with too many grafts. I always stress that the doctor and the patient must build a Master Plan for their future as hair loss is a progressive process and hair transplantation should NEVER be looked at as a short term fix. Good doctors create such a Master Plan with their patient to avoid running out of hair in the long term.