It is very important that you learn to handle your mice correctly, both to avoid hurting them and to help them get used to you and become tame. Being handled roughly and/or feeling frightened is the most likely reason for a mouse to bite so getting it wrong will almost certainly be painful for the both of you!
The safest way to pick up your mouse is to cup it gently in both hands. Always approach from the front and when the mouse is awake and alert so as not to startle it. Put your hands either side of him/her and then move them together making a scooping action to lift them. It is also OK to pick up your mouse by grasping it firmly by the base of its tail with one hand and then quickly moving your other hand under it’s body to support it’s weight. If your mouse is nervous or jumpy you may need to continue holding the tail to prevent them from jumping out of your hand and hurting itself, but never hold your mouse unsupported by the tail for any length of time or pick it up by the tip as you could seriously hurt and even permanently damage your mouse’s tail.
|A mouse sat happily in cupped hands.||A tail kink, possibly caused by incorrect handling.|