For more information, see Melissa Kaplan s Constipation and Diarrhea in Iguanas . Dehydration - A lack of water in the body. Symptoms - A prominent fold along the side of the body is one sign of dehydration. You can check to see if your iguana is dehydrated by gently pinching the skin on its arm or leg. If the skin stays up for a few seconds instead of immediately snapping back in place, your iguana is probably dehydrated.
Dehydration is hard on the kidneys, and chronic dehydration can lead to kidney damage and failure.
An occasional treat of water-soaked bread may be given. For more information, see Tricia Power s article, Dehydration in Reptiles . Diarrhea - Frequent, runny stools. This is especially helpful if your iguana is being treated with antibiotics. Acidophilus tablets and capsules are available at health food stores.