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In general, crested geckos do not seem to be affected by health problems as often as some other lizards. However, there are certain conditions that do affect these geckos, and most are the result of inadequate care. If you are taking proper care of your crested gecko, the chance of him suffering from one of these ailments is small, but it is a good idea to learn about them, just in case.
The inability to shed some or all of the skin, which can lead to other serious problems, is called dysecdysis. The skin of a crested gecko that is affected by this problem will usually appear dull and somewhat wrinkled. The skin may be flaking off in certain areas, but it will not be completely removed. This will be a stressful time for the gecko, and he will be unlikely to eat until all of the skin has been shed. He may also be unable to move normally or climb vertically.
Dysecdysis is normally caused by dehydration and/or low humidity. To treat, place the gecko in a small cup with plenty of ventilation holes, using damp sphagnum moss or wet paper towels as a substrate. Spending several hours in this moist environment should help to loosen the dried skin. You can then peel it off manually, being especially careful to remove all the skin around the feet, toes, and eyes. If the dysecdysis is already advanced when discovered, veterinary assistance will be necessary.
Metabolic Bone Disease
In crested geckos, metabolic bone disease is caused by a lack of dietary supplementation. Geckos that don’t receive the appropriate amounts of various nutrients will be unable to properly utilize calcium. The result will be soft bones, weakness, impaired mobility, and possible disfigurement. A gecko that suffers from metabolic bone disease can recover when the use of proper supplements is implemented. If the disease is very advanced, veterinary care may be useful.
The problem of runny feces is very common in crested geckos. This usually results from a diet that is made up of predominantly pureed food, such as baby food. To help maintain solid feces, a crested gecko’s diet should be a combination of crickets and pureed foods.