Siamese cats, like all cats, can exhibit a wide range of behavioral issues. Some common behavioral issues seen in Siamese cats include excessive vocalization, aggression, and destructive behavior.

Excessive vocalization in Siamese cats can be a result of boredom or loneliness, as they are a very social breed and thrive on human companionship. If your cat is excessively vocal, it may be helpful to provide them with more toys and activities to keep them entertained, as well as spending more time with them to provide them with the socialization they crave.

Aggression in Siamese cats can be caused by a variety of factors, including fear, territoriality, and dominance. If your cat is displaying aggressive behavior, it is important to consult with a veterinarian or a certified behaviorist to determine the underlying cause and develop a plan to address it.

Destructive behavior, such as scratching or chewing on furniture, can be a sign of boredom or a lack of appropriate scratching surfaces. To help prevent destructive behavior, it is important to provide your cat with a variety of scratching surfaces, such as scratching posts or boards, and to keep their claws trimmed.

Overall, Siamese cats are a loving, sociable, and highly intelligent breed and make great companions when given the proper care and attention.

It is also worth to consider that every cat is unique and they might show different behavior or lack of the one that is commonly seen on the breed, It can be a good idea to have them checked by a veterinarian to make sure that there are no underlying medical conditions that might be causing the behavioral issues.