Common Pet Health Myths That Vets Hear Every Week

This comparison doesn't hold up under scrutiny. Dogs' mouths contain bacteria like Pasteurella, Capnocytophaga, and various other microorganisms that are normal for them but potentially problematic for humans — particularly those who are immunocompromised. Similarly, human oral bacteria would be foreign to a dog. The comparison was never scientifically valid; it appears to have originated from the observation that dogs lick their wounds (a behavior that can actually introduce bacteria and slow healing). Routine hygiene after pet contact, especially around wounds or mucous membranes, is always advisable. For more on infections that can cross between pets and people, see what pet owners should know about zoonotic diseases.

The "righting reflex" is real: cats can rotate their bodies mid-fall to orient their feet downward. However, this reflex doesn't eliminate the force of impact. Falls from even moderate heights can cause broken legs, ruptured bladders, chest trauma, and jaw fractures — a set of injuries veterinarians sometimes call "high-rise syndrome." Survivability depends heavily on the height, landing surface, and the individual cat. Falls from second- or third-story windows represent a meaningful emergency risk. Window screens and balcony barriers are important safety measures, not optional extras.

A dog's nose can be dry after a nap, warm after exercise, or cool and wet for no particular reason. These variations are normal. While a persistently cracked, discolored, or heavily crusted nose can sometimes signal a dermatological issue worth mentioning to a vet, the simple dry-warm test is not a diagnostic tool. More meaningful signs of illness include changes in appetite, energy level, water intake, bathroom habits, or behavior. Relying on nose temperature alone can give owners false reassurance — or cause unnecessary worry — when neither is warranted.

Indoor living reduces certain risks — parasites picked up outside, injuries from fights, exposure to some infectious diseases. But it doesn't make a cat immune to illness. Dental disease affects the majority of cats over age three regardless of lifestyle. Obesity is more common in indoor cats, partly due to reduced activity. Urinary tract issues, hyperthyroidism, and kidney disease are all common in indoor cats and often progress silently. Annual wellness exams remain important for early detection. See how health needs shift as pets age for guidance on what to watch for over time.

Research on grass-eating in dogs suggests the behavior is widespread and typically not associated with illness. Studies have found that the majority of dogs who eat grass do not appear ill beforehand and do not vomit after. Some researchers suggest it may be an instinctive behavior inherited from ancestral dogs, possibly related to fiber intake or gut parasite management. Occasional grass-eating in an otherwise healthy dog is generally not a cause for alarm. However, if a dog is eating grass compulsively or vomiting frequently, a veterinary evaluation is appropriate to rule out gastrointestinal issues.

It's easy to attribute reduced activity, stiffness, or reluctance to climb stairs to "just getting old." But many of the conditions that cause these symptoms in senior pets are manageable with veterinary care. Osteoarthritis, for example, is both common and frequently undertreated in dogs and cats. Hypothyroidism in dogs, hyperthyroidism in cats, dental pain, and cognitive dysfunction are other conditions that can present as simple slowing down. A veterinarian can assess whether behavioral or physical changes represent normal aging or a condition where intervention would meaningfully improve quality of life. Senior pet care guidance can help owners know what to watch for and when to ask questions.