Why cats don't like having their nails trimmed:
1. The cat doesn't understand what its owner is doing. If a cat has never had its nails trimmed, and its owner suddenly grabs and presses down on the cat's paw while taking out nail clippers, the cat will be quite frightened because it doesn't know what's going to happen, and the cat will instinctively resist.
2. The owner is too rough when trimming the cat's nails. If the owner does not position the cat comfortably during nail trimming, or if the cat is disobedient and the owner forcibly pulls or yells at the cat, it will cause the cat to resist.
3. Unpleasant memories of nail trimming. If the owner or someone else has ever cut the cat's nails until they bled, or hit the cat while trimming its nails, the cat will remember it and develop a psychological trauma, naturally making it dislike nail trimming. 
4. They can curl up to keep warm. A cat's sweat glands are located on its paws, so heat is lost through its paws. When a cat feels cold, it will tuck its paws and feet under its belly and curl up to keep warm.
5. They can maintain a very comfortable sitting posture. The folded-paw sitting posture is similar to a human crossing their legs; it's a very comfortable way to sit and also provides the aforementioned warmth, which is why cats often adopt this relaxed posture.
6. It allows the cat to be in a safe environment. The folded-paw sitting posture is a less likely to escape compared to the hen squat, so when a cat adopts the folded-paw posture, it means that it feels quite safe in its surroundings.
Precautions for trimming your cat's nails:
1. When trimming a cat's nails, use cat-specific nail clippers, and avoid using human nail clippers. Human nail clippers are not particularly convenient for trimming a cat's nails and can easily damage them.
2. Before trimming your cat's nails, soothe them and keep them relaxed and calm. If your cat refuses to have their nails trimmed or seems agitated, do not force it. Forcing your cat to trim their nails will create resistance and may make them never want to have their nails trimmed again.
3. After trimming your cat's nails, you can reward it with treats. This will let it know that trimming nails is not scary and that it will get a delicious reward.
