Crested Gecko Secret ManualIs Your Crested Gecko Unhappy? Here Are A Few Telltale Signs: You may have a serious problem with your crested gecko if: Your gecko does not have a good bodyweight; for example, if the rest of the body is bulky, yet the hip bones are protruding You notice apparent blemishes, such as bite marks, skin tears or other worrying skin conditions Your gecko's eyes appear filmy, hollow or sunken, or the pupils are heavily dilated You notice obstructions in the flaps of the gecko's skin, or dried mucus