The number of placentas in cats is directly proportional to the number of kittens. When giving birth, carefully observe whether the umbilical cords of the kittens contain placentas. If any kitten does not carry the placenta, it means that it has been discharged cleanly. Wait for a while to see if the mother cat can pass the placenta on its own. If not, take the female cat to the pet hospital for treatment. Placenta retained in the abdomen of a female cat can cause poisoning, which can seriously endanger the life of the female cat.