Once or twice a month. You can do it beginning and end of each month or twice a month if it smells really bad.
yes, you should bathe your guinea pig once a month.
No.guinea pigs should have a bath in water at least once a month, guinea pigs are very prone to respiratory problems (breathing) and the dust could be very harmful to their lungs.
You should not give a guinea pig a shower once a week. I only bath my guinea pigs if they are really in need of a bath or if I'm taking them to a show. I would say a few times a year if you want to bath them, but not once a week
i think an average guinea pig should 5-15 times a day i can ensure you if they have more they are perfectely fine for an example my guinea pig did about 30 one day but that was because it had a big meal.
It is fine to never bath your guinea pig. They dont need a bath because they clean themselves.
three times aweek is sufficient in one week
You shouldn't give a hamster a bath it can give it a chill and die.Unless your hamster is really dirty.So please be careful.Use non tear shampoo if nessary.
Well considering that both of mine get baths once a month and they still dont have cancer I would asume they wont get cancer.
They clean themselves.
They need baths usually once a month unless they get very dirty. Use pet shampoo, and google how to properly bathe them
do not bath your guinea pigs ever! only bath them with special washing shampoo from wilkinsons, even if you get that its only if your guinea pigs are really dirty. It will have writing on the back to read or get special shampoo from ebay or a pets shop.
I would not recommend giving a guinea pig any younger than 3 months a bath.