siamese cat birth defects
Megaesophagus is another defect involving mainly Siamese cats, although it is seen in other breeds as well. The most common symptom is regurgitation. Regurgitation is different from vomiting in that the food is completely undigested and the event occurs immediately after eating.
There are a number of neurologic defects affecting cats. Spina bifida is seen in Manx and Siamese cats. Affected cats can have portions of the spinal cord showing and may be missing their tails. In addition, they have problems controlling urination and defecation.