Haley, I always worry about worms because of the cat and dog. I worm them regularly and they never have any but you never know. I got really paranoid a couple of years ago and took a wormer but it resulted in the worst farts I have ever smelt in my life. I couldn't even be in the room with me - it was snowing outside but I had to have all the windows open just so I could breathe. I am so glad I took it on my days off and wasn't at work. I am not too keen to repeat the experience lol.