Theoretically this is possible. In general, this would not be advised as it would lead to scars in each place where hairs are removed. To remove hairs from the scalp an incision needs to be made in the scalp. Even though this is a small (less than 1 mm) incision it is important to understand the basic principle of wound healing : "anytime an incision is made in the human skin a small scar will result"So if 1500 hairs are placed into an area of thinning and an individual does not like the result, the individual can have them removed but it would take a few hours to remove them and the patient may be left with visible scars - possible worse in appearance than before the transplant. Occassionally I will get a referral from a patient who had a hair transplant somewhere and wants a few grafts removed. This is possible - and we can remove them. Another scenario is a patient who had "plugs" placed into the scalp from a hair transplant performed many years ago - we often remove these plugs, divide them into smaller follicular units and place them back into the scalp. The key lesson here for readers is that it's important to plan and carry out the procedure correctly from the very beginning - you do not want to plan to remove hairs down the road. This may lead to an unnacceptable result on account of scarring.