When to flea and worm a kitten

My cats kittens will be a week old in 2 days how old have they got to be before I can flea them and worm them

At least 6 months... Are the fleas and worms that BAD already? If fleas are a problem, get yourself a good sturdy flea comb and that should get most of them. Just remember, fleas are not dead until you "pop" their exoskeleton (rubbing them between your fingers doesn't work). When I start on a cat or kitten, I'll sit with them and start to comb. If I get any fleas, I usually pull them off the comb with my fingers and drop the hair, flea dirt (poop) and fleas on a white sheet of paper (makes seeing the fleas easier). Now, you need something to crush the fleas with... either the hard end of the flea comb works or I used a dead 9 volt battery. After a few weeks of doing this, the cat is flea free and usually stays that way for quite a while. No harmful flea sprays or herbicides are used. 

Not 6 months! 6 weeks for some products, although my vet says for a bad case you can use certain de-wormers as early as 3 weeks. Ask your vet for a safe de-wormer. For fleas, I believe Advantage is safe at 8 weeks, some others are marked for use at 12 weeks. Again, ask your vet what's safest. Before that, you can definitely use a flea comb. I use a cup of hot soapy water to knock the fleas into. The soap makes them sink so they drown faster, and can't jump out before they drown.

Thank you everyone no they ain't got fleas or worms but I was told I ad to start when they was small So that they didn't catch anything