It can be alarming to discover that your cat has worms but it should not come as a surprise. All pets are affected at some stage in their life and many will be re-infected unless they are given regular, routine worming treatment. Except in rare cases, worms are unlikely to cause serious harm. Getting rid of worms is relatively simple and inexpensive so regular treatment is strongly recommended, particularly as some types of worm can be passed on to humans.
It can be alarming to discover that your cat has worms but it should not come as a surprise. All pets are affected at some stage in their life and many will be re-infected unless they are given regular, 
