Most owners that are intending to keep guinea pigs as pets choose short-haired varieties, or instead opt to cut off most of tresses from a long haired variety. If you do need to groom a long-haired guinea pig, it’s best to use a wide-toothed comb and to hold the hair above where you’re brushing it in order to stop yourself pulling on the root and hurting the guinea pig. Thinner combs can be used for their short-haired stomachs and legs.
Long-haired guinea pigs will need lots of grooming
As with short-haired varieties, long-haired guinea pigs may need the area around their grease-gland cleaned regularly. See Guinea Pig Grooming for more details.