One way to avoid external parasites and prevent accumulation of dead hair - with the consequent formation of hairballs - is to brush your cat regularly. (animalwised.com)
In rabbits, a lack of fiber in the diet can also result in the formation of hairballs from the fur they ingest while grooming, which can cause blockages. (petbusiness.com)
Regular brushing keeps your cat's fur free of dust, spreads the natural oil throughout, and prevents the tangling of fur and formation of hairballs. (petsmagazine.com.sg)