"A cat that is vomiting or retching, lethargic, or does not want to eat may have an obstruction from a hairball," Whittenburg says. "Defecating does not rule out a hairball, as feces are stored in ...

Hairballs are clumps of partially digested hair that occur when a cat grooms itself with their ... is what’s left after the meat that humans eat is removed— like livers, kidneys and other ...