Hello, Dr. George Abrahamian here from LA FUE Hair Clinic in Pasadena, CA. Typically during a hair transplant what happens is the hair follicle is excised from the donor, whether through FUE or FUT, and implanted into the recipient site. The recipient skin will then absorb the follicle, and that follicle will then mature over time. Typically, grafted hair follicles will start maturing around the 3rd month post transplant, and can take up to a year to fully cycle through their phases enough for you to see the final outcome. Once the body accepts the hair follicle, the hair that was grafted along with the follicle goes dormant, and will likely never grow. New hair should start to sprout from that follicle, but the transplanted hair itself likely won't. Starting approximately 10 days after hair restoration, the grafted hairs should start to fall out on their own, and once you're able to touch and massage the transplanted areas in the shower based on your clinics post operative timeline, you'll notice more and more of these short stubble hairs shedding, until most, if not all of the transplanted hairs fall out. In some instances, the body will retain this dormant hair, and it will essentially just be a foreign body that is present. If you look closely, especially 9 months after your transplant, you will likely see some new hair sprouting around the retained dormant stubble. I recommend speaking with your surgeon to see what your options are, but the majority of the time, manual removal of the stubble is indicated, as they can clog up the channel where the hair is trying to grow. It does not mean the graft didn't take, especially if you see hairs growing from the same channel, it just means that the body held onto that dormant hair for longer than anticipated. You can also try using your non surgical options like Minoxidil and Finasteride to try and shift the growth stage of the hair out of dormancy, but this is few and far in between, and these options are far more beneficial for hair that is already able to cycle through their anagen, catagen, telogen and exogen phases. I hope this helps.