theoretically, the answer of your question is Yes, to explain this I will have to tell you one theory called donor dominance theory, the theoretical reason behind the permanent-ness of Fue hair transplant. What is donor dominance theory? as you might know that in androgenetic alopecia the cause behind the hair loss is the hormone named DHT ( dihydrotestosterone). Hairs at the top of our scalp are usually sensitive to the DHT so prone to hair loss and on the contrary hairs on the back of the scalp and body hairs like beard and chest don't have receptors for DHT hormone so can't be loose.
so according to this theory of donor dominance when hairs from donor area that is back of the scalp and body hairs are transferred to the recipient area that is top of the scalp can't be lost again " theoretically"
but there is one more theory also which is gathering lot more buzz these days named " recipient dominance theory" according to which 30% hairs may gain characteristics of hair of recipient area and may get affected by DHT and may loose. That is also one of the reasons that finasteride and minoxidil are highly advisable after the hair transplant. Though hairs from donor area are resistant to the DHT hormone but 20%-
so coming back to your answer hair transplant is pretty permanent but those hairs also have an effect of ageing on them too in extreme old age you are most probably going to loose that transplanted hair too, but on average transplanted hair has an average age of around 20 years.
but to get that minimum 20 years effect you have to follow following things are-
- Are you a good candidate for hair transplant?
- did you choose right clinic and right surgeon?
- Are you ready to take good aftercare of hair transplant?
You may loose hairs after hair transplant may be temporary or permanent due to following reasons
- Shock loss
- Telogen effluvium
- If hairs are taken from the nonpermanent zone.
- done by the inexperienced surgeon and at bad infrastructure.
but at our hair transplant clinic, we take care that you get fairly long enough results of FUE hair transplant.