1. Cats are meticulous groomers, and in the process, they swallow loose fur. Occasionally passing a hairball is indeed normal feline biology, not a disease in itself. 2. The concern arises with frequency, a cat vomiting hairballs multiple times a week, or straining without producing one, is signalling that the digestive system isn't clearing ingested hair efficiently. 3. Long-haired breeds, heavy shedders, and cats in shedding season swallow far more hair, increasing the load on their digestive tract. 4. When hair accumulates instead of passing through, it can occasionally form a blockage, a serious condition that may require surgical intervention if not caught early. 5. Diet plays a significant role, adequate fibre and specific dietary support help hair pass through the gut naturally, rather than accumulating into dense masses. 6. Excessive grooming itself is sometimes a sign of stress or skin irritation, so frequent hairballs can occasionally point to an underlying skin or anxiety issue, not just a fur problem.