When hair extensions are first fitted, on the day of the installation the bonds will be placed close to your scalp so that they are secure, and will last you 3-4 months whilst they slowly grow down. The extension should be placed just far enough away from the scalp so that it can move in every direction and not be restricted, and they should lay pendulously (flat against the head) without sticking out at all. By placing the hair extensions in such a way, your hair extensions should cause you minimal discomfort, however each and every client is different, and some will experience a settling in period for them to get used to the hair extensions which can be mildly uncomfortable. Many describe this sensation as being somewhat similar to having tied your hair in a tight ponytail for the day, where the scalp has become tender from the pressure of the style. With hair extensions this is a perfectly normal sensation, and will subside within a matter of days once your scalp has adjusted and returned back to normal.