Putting more than one iguana in a cage often leads to fighting. The presence of a second iguana even within view of another may result in excited reactions, decreased appetite, and thrashing around the cage. Common Disease Problems You should become familiar with your pet's normal behavior patterns so as to recognize any changes in activity or appetite. If your iguana has any of these signs, immediately schedule an appointment with your veterinarian. Metabolic Bone Disease Metabolic bone disease is the most common disease affecting iguanas.
Iguanas develop osteoporosis and low blood calcium.
The physical signs of this disease are variable. The jaw should normally be as firm as the human jaw. Other young iguanas will develop swelling of the leg bones. Loss of appetite, inability to defecate, real leg paralysis, and crooked spines are also seen. Older iguanas usually show weakness, loss of appetite, and muscle twitching.