Why is my juvenile leopard gecko throwing up food and losing weight?

I think that you are right to be concerned about Geo. With the previous lack of humidity and inappropriate husbandry, I would be worried that she may have an impaction. When impactions occur in the intestinal tract or colon, it does not allow additional food to pass through the intestines. This eventually will lead to regurgitation. This is a common finding in geckos that have not had appropriate husbandry. The regurgitation may also be due to her not feeling well - just like when we get sick, reptiles can become nauseous. This is less of a specific sign and can be due to numerous diseases. I would recommend taking Geo in for evaluation by a veterinarian. They can perform a thorough physical examination and see if they suspect an impaction based on palpation of the coelom (feeling the belly). Depending on what they find, they may recommend diagnostics or treatments for Geo. I know that you have already increased the humidity, but it may also be a good idea to soak Geo in 85-90 F water for 15-20 minutes twice daily. This may encourage her to drink (although many leopard geckos do not like to soak, even though it is good for them :) ) and hydrate. I hope this gives you a place to start, and I hope that Geo feels better soon!

This may be due to liver/gall bladder infection, impaction/constipation or parasites. This gecko may be quite ill and should be examined by your veterinarian or a vet experienced in treating reptiles. Submit a stool sample ot diagnose intestinal parasites. Soak Flavio in a warm 50/50 solution of water and unflavored PediaLyte. This will warm him up and provide hydration. If he perks up, offer Fluker's Repta Boost. You can find it in the local Petco. Maintain proper environmental parameters and have him seen by your vet as soon as you can. Review leopard gecko care at the link below. http://www.reptilesmagazine.com/Care-Sheets/Lizards/Leopard-Gecko/

Make sure any prey is appropriately sized, no bigger than the space between his eyes. They should be gut loaded for at least 24 hours prior to offering to maximize nutritional value. Consider adding LaFeber’s Emeraid for Carnivores, Oxbow’s Carnivore Critical Care or Fluker's Repti-Boost to get weight on him. Submit a stool sample to your herp veterinarian to diagnose intestinal parasites. If there are cryptosporidium in his stool, they may be responsible for his condition.

Have him examined by your veterinarian or an experienced herp vet. Submit a stool sample to diagnose intestinal parasites. This will all give you a better idea of his health status. Barring any major illness or injury, he could be rehabbed and live a "normal" life. Set him up in an appropriate enclosure with correct parameters. Offer appropriately sized and gut loaded prey as well as some Fluker's Repti-Boost. Soak in a warm 50/50 solution of water and unflavored PediaLyte daily for 20-30 minutes to maintain hydration. It may take time, but with a healthy diet, proper environment and some care, he could recover.

Pinky is severely emaciated and weak. She needs to see a reptile veterinarian immediately for any chance to save her. They may be able to help diagnose her underlying disease and offer supportive care or nutritional support. If her disease had progressed too far they can offer humane euthanasia to prevent her from suffering further.

He may have a retained eye cap which could be the cause of those symptoms. Check temps in the cage. Low temps may affect appetite and activity in reptiles. Soak him in a warm 50/50 solution of water and unflavored PediaLyte for 15-20 minutes. This will provide warmth and may treat or prevent minor dehydration. It may also help is he has any residual shed. You can also massage his abdomen, front to back, during the soak to stimulate defecation. I see you use sand as a substrate, so an impaction is always a concern. Pick up some Fluker's Repta Boost or Oxbow Carnivore Care from the local pet store. This is a better option than baby food. If he doesn't start eating in the next few days or if the eye does not improve, have him seen by your veterinarian or a vet experienced in treating reptiles.

Give him a good soak (20-30 minutes) in a warm 50/50 solution of water and unflavored PediaLyte. This will provide hydration and warm him up which may stimulate his appetite. An exam with your veterinarian or an experienced herp vet is always recommended for "new" pets or pets that may be ill or injured. Offer food about an hour or 2 after the heat lamp comes on in the morning. This will allow him to warm up and he will be more likely to eat what is offered. Use a variety of prey if possible. This can include crickets, dubia roaches, phoenix worms and the occasional superworm. Superworms are good to feed if you have a skinny gecko that needs to put on weight. Review additional care info here: http://www.anapsid.org/leopardgek.html