Why do cats get constipated?
There are many reasons why cats may be constipated, including dietary problems, lack of exercise, stress, dehydration, and health issues.
First, dietary issues are a common cause of constipation in cats. If a cat's food lacks sufficient fiber or water, their intestinal function may be affected, leading to constipation. For example, a diet consisting of too much dry cat food and too little wet food may result in insufficient water intake, affecting the consistency of the stool and making it difficult to pass. 
Secondly, lack of exercise can also lead to constipation in cats. Cats are naturally active, and if they stay in a sedentary state for a long time, such as staying at home or in a cage, their intestinal peristalsis will decrease, thus affecting defecation.
In addition, stress can also affect a cat's intestinal function. Cats are very sensitive animals, and changes in their environment, the arrival of a new family member, or changes in their owner's emotions can all cause them stress, leading to constipation.
Dehydration is also a cause of constipation in cats. If a cat doesn't drink enough water, its body will absorb more water from its intestines, causing the stool to become dry and hard, making it difficult to pass.
Finally, health problems can also cause constipation in cats. Some diseases, such as intestinal infections, inflammatory bowel disease, glandular problems, and the side effects of certain medications, can all affect a cat's bowel function.
In general, constipation in cats can have many causes, requiring diagnosis and treatment based on the specific situation. If your cat shows signs of constipation, it's best to consult a veterinarian promptly.