Compacted clumps of fur that cats vomit up
Ingestion of loose fur during grooming
Brush your cat regularly, feed a hairball control diet, give your cat a hairball remedy
Brush your cat regularly, feed a hairball control diet, trim your cat's nails
Hairball remedy, hairball laxative, hairball paste
If your cat is vomiting more than once a week, if your cat is lethargic or has other symptoms
Olive oil, canned pumpkin, psyllium husk