When I got Alice she had been wormed at the fosters but I had to give her 3 or 4 doses of Milbemax at 2 weeks intervals to clears hers up
One of our cats got worms when I was a kid. You're right - they are My Dad went to see the doctor for something else around the same time, and mentioned it, and he was given some sachets of blackcurranty stuff for us all to take, just in case. I was about 8 at the time, which might have been why.If you're concerned about your son, then ring your surgery - can't hurt to be on the safe side.
I give mine Milbemax as they are tiny and easy to give. The vet recommends every 3 months. If your cats go in the garden, it is important to worm regularly as they can pick up eggs from the grass. You can also get a spot on wormer but it works out about £6 a go. Stronghold spot on flea treatment kills roundworms but not tapeworm. Worms can cause all kinds of health issues so really important to keep up with the worming. I read that if you get to the stage where you can actually see the worms, the cat has a really bad infestation.
Sorry never had to deal with worms and to be honest I am a bit lax at worming them as none of them go out and well, I used to use supermarket stuff then everyone said that stuff was useless!!So was there no symptons - she just pooed out some worms!!that really is