To read part 2, click here.
Below is a list of more traits to look for in a healthy, normal iguana:
Mouth
When you look inside the iguana's mouth, it should look pinkish and healthy. Look for any bad signs of yellow coloring or cheesy, stringy mucous discharge. A mouth that is always hanging open is a sign of a respiratory disease, especially if it is mixed with a forced, labored wheezing sound coming from it's lungs. To look inside the iguana's mouth, carefully hold the nose using your thumb and index finger while using the other hand to gently pull down on the very tip of the dewlap. Be careful and very gentle, opening it just enough to see the color.
Stomach
Its stomach should not look thin. A thin iguana is not a healthy pet. One that has recently eaten will show a big, happy belly. If you see them eating at the store or current owner's house, that means they do not have an eating problem and will most likely remain that way when you take it home.
Vent
An iguana's vent is the opening through which the animal defecates. It is also where the sex organs are located. To check the vent, hold the animal in a vertical position at about 12 inches from your face facing at its stomach. The vent is the horizontal slit or fold in the skin. The vent should have no discharge or anything sticking around that area, as this can be a sign that there is something wrong. As for defecating, iguanas are clean animals and always clean themselves after defecation.
Tail
A healthy iguana tail looks thick, fat, and plump at the base (the area where the tail attaches to the body). There should not be any visible bones in the tail or the body. A fat tail is a sign that the iguana eating regularly.
Skin
An iguana's skin should be bright and tight without any bagginess. Loose skin is a sign that it is not eating enough and not eating well. The skin of a young iguana should be bright green. As the animal gets older, the green gradually becomes more muted with the addition of some brown, blue, or gray patterns. Adult male iguanas also turn into various shades of orange on their arms, legs, and heads during breeding season.
Do not choose a green iguana that has dark or black skin, this is an indication of a sick iguana. Some iguanas have ticks on their skin. This is not a reason to reject the animal. Ticks are easily removed and are not a sign of sickness. Also, it's okay for the iguana's skin to look like it's coming off or to see thin sheets of torn skin. Thin, torn skin coming off its body means that it's shedding, which is a healthy, natural occurrence that will take place throughout his life.
Legs
Healthy iguanas have rounded legs. However, the legs shouldn't look swollen or fat. Iguanas with fat-looking legs may be suffering from calcium deficiency. Another sign of this illness is when the back or spine is twisted or distorted.
Attitude
When picked up, a healthy iguana should display a bit of feistyness or may squirm and try to get away. They may even try to bite you or whip its tail. This is normal. These are wild animals and it is their natural instinct to try to get away to protect themselves. Unless it's been tamed, if it's too relaxed or too calm on your hand, it might be sick.
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