German Shepherds pant more than many breeds, partly because of their thick double coat and high energy level. But if your dog pants heavily at rest, pants at odd times (like the middle of the night), or pants alongside other changes in behavior or appetite, something beyond normal cooling could be driving it. A healthy dog at rest breathes 10 to 30 times per minute. If your German Shepherd consistently exceeds that range while relaxed, it’s worth investigating.
How Dogs Cool Down (and Why GSDs Do It More)
Dogs don’t sweat through their skin the way humans do. Panting is their primary cooling system: rapid breathing moves air across the moist surfaces of the tongue and airways, evaporating water and pulling heat out of the body. German Shepherds have a dense undercoat designed for insulation, which makes them retain heat more easily than short-coated breeds. After exercise, on warm days, or in a stuffy house, you should expect your German Shepherd to pant heavily. This is completely normal and will resolve once the dog cools down.
The key question is context. Panting after a walk, during play, or on a hot afternoon is the body working as designed. Panting while lying on a cool floor with no obvious trigger is not.
Stress and Anxiety
German Shepherds are a high-drive, handler-bonded breed, which makes them especially prone to anxiety-related panting. Separation anxiety is one of the most common behavioral causes. If your dog pants heavily when you’re about to leave, while you’re gone, or when crated, anxiety is a likely explanation. Other stress signals that tend to appear alongside anxious panting include dilated pupils, yawning, trembling, pacing, excessive drooling, and frantic greeting when you return.
Noise phobias (thunderstorms, fireworks), changes in routine, a new household member, or even a move to a new home can trigger persistent panting. Some dogs also pant in the car or at the vet’s office purely from stress. If the panting stops once the stressor is removed, the cause is almost certainly behavioral rather than medical.
Pain You Can’t See
Dogs are stoic by nature, and German Shepherds are no exception. Panting is one of the most reliable outward signs that a dog is in pain, even when the source isn’t obvious. Joint problems are extremely common in this breed, particularly hip and elbow dysplasia, degenerative disc disease, and arthritis in older dogs. A German Shepherd with chronic joint pain may pant at rest, shift positions frequently, and seem reluctant to jump or climb stairs. Abdominal pain from gastrointestinal issues, pancreatitis, or urinary tract problems can produce the same constant panting.
If your dog’s panting started or worsened recently and you can’t tie it to heat, exercise, or an obvious stressor, pain should be high on your list of suspects.
Heart Disease
Large breeds, including German Shepherds, are among the dogs most often affected by dilated cardiomyopathy, a condition where the heart muscle weakens and can no longer pump blood efficiently. Dogs with early heart failure often show reduced exercise ability, tire quickly, and pant more than expected for their activity level. As the disease progresses, you may notice coughing (especially during or after activity), reluctance to lie down, labored breathing, loss of appetite, and eventually collapse.
The panting in heart disease happens because the lungs aren’t clearing fluid effectively, so the dog breathes harder to compensate. If your German Shepherd pants at rest and also coughs or tires on walks that used to be easy, a cardiac workup is warranted.
Cushing’s Disease
Cushing’s disease occurs when the body overproduces cortisol, a stress hormone. It’s one of the most commonly missed causes of excessive panting because it develops gradually and mimics normal aging. The classic combination of symptoms includes increased thirst, increased urination, increased appetite, a pot-bellied appearance, thinning skin or hair loss, reduced activity, and excessive panting. If your German Shepherd drinks noticeably more water than usual and pants constantly, Cushing’s disease fits that pattern well. It’s diagnosed through blood work and is treatable once identified.
Laryngeal Paralysis
This condition affects the nerves that control the muscles opening the larynx (the “voice box” at the top of the airway). When those muscles stop working properly, the airway doesn’t open fully, and the dog has to work harder to breathe. It’s most common in older, large-breed dogs. The hallmark sign is noisy, raspy breathing that sounds different from normal panting, along with excessive panting even in cool conditions. Some dogs also have a changed bark or gag while eating or drinking.
Laryngeal paralysis tends to worsen in hot weather or during excitement, and in severe cases it can become a medical emergency when the dog simply can’t move enough air. If your older German Shepherd’s panting has a distinct harsh or whistling quality, this condition deserves attention.
Overheating and Heat Stroke
Heavy panting is the earliest warning sign of overheating. In dogs, heat stroke is defined by a core body temperature above 105.8°F (41°C) along with neurological symptoms like disorientation, stumbling, or collapse. German Shepherds are at higher risk than lighter-coated breeds because their double coat traps heat. Exercising in warm weather, being left in a car, or even spending too long in a sunny yard without shade can push them past the tipping point. If panting becomes extreme and your dog’s gums turn bright red or pale, the dog is drooling excessively, or seems dazed, move the dog to a cool area and use cool (not ice-cold) water on the body immediately.
Bloat: The Emergency to Rule Out
Gastric dilatation-volvulus, commonly called bloat, is a life-threatening emergency that strikes deep-chested breeds like German Shepherds disproportionately. The stomach fills with gas and can twist on itself, cutting off blood flow. Panting and restlessness are early signs, along with a visibly swollen abdomen, non-productive retching (trying to vomit but nothing comes up), excessive drooling, pale gums, and weakness or collapse. Some dogs adopt a “praying” position with their front legs stretched forward and chest low to the ground. Bloat can kill within hours, so if panting appears suddenly alongside any of these signs, it requires emergency veterinary care.
Medications That Cause Panting
If your German Shepherd is on any medication, that may explain the panting. Steroids like prednisone are one of the most common culprits, often causing increased thirst, hunger, and restless panting. Thyroid medications, blood pressure drugs, insulin, antihistamines, and some flea and tick products can also trigger panting or a general state of restlessness where the dog has difficulty settling down. If the panting started around the same time as a new medication or dosage change, mention it to your vet. The fix may be as simple as adjusting the dose.
How to Figure Out What’s Going On
Start by noting when and where the panting happens. Track the pattern for a few days: Does it happen only after walks? Only at night? Only when you leave? Is it worse in warm rooms? Does your dog also drink more water, eat differently, cough, or seem reluctant to move? These details help narrow the cause dramatically.
Count your dog’s resting breathing rate when the dog is calm and hasn’t recently exercised. Watch the chest rise and fall for 60 seconds. A rate consistently above 30 breaths per minute at rest suggests something beyond normal thermoregulation. If the panting is accompanied by coughing, noisy breathing, pale or blue-tinged gums, a bloated abdomen, or any sudden behavioral change, those signs point toward a medical cause that needs professional evaluation rather than a wait-and-see approach.