Do not change the blood mat when the cat is giving birth, because it will frighten the female cat and affect the normal production. Wait until the female cat has given birth before replacing the blood mat. The owner should wear gloves when replacing the kitten, and do not handle the kitten directly to prevent the mother cat from giving birth. Cats feel insecure due to other smells. If the female cat at home is very close to the owner and has a docile personality, the owner can replace the blood mat during delivery.