Why is my dog breathing heavy and drinking lots of water?

A senior dog drinking a lot of water could be a sign of a health problem. Typically, a dog drinks about one cup of water per 10 pounds of body weight. The common causes of a dog suddenly drinking a lot more water are kidney failure, diabetes mellitus, Cushing's syndrome, or simply dehydration, all of which need to be addressed. If your senior dog is drinking an excessive amount of water, plan a visit to the vet.

Increased water intake can be a sign of many different conditions. Kidney failure, diabetes mellitus, and Cushing's syndrome are the most common causes in senior dogs. Increased water consumption may also be seen with dehydration, however, this condition may be seen in dogs of all ages.

The kidneys serve many roles, one of them being water conservation. Hydration of the body depends on both water consumption as well as the removal of water. In times of dehydration, the kidney must respond by conserving water. This means that all the materials the body needs to get rid of still need to be removed, but the kidney needs to manage this using the smallest amount of water possible. A pet with impaired kidney function will have a difficult time concentrating urine and will need to drink extra water to process the body's waste chemicals.

Diabetes mellitus is caused by a deficiency of insulin in the body. Insulin is necessary to remove glucose (sugar) from the bloodstream, and when it is low or absent, there is a buildup of glucose in the blood. Normally, the kidneys conserve the bloodstream's glucose, but their filtering function can be overwhelmed with the blood sugar is very high. This excess glucose ends up spilling into the urine and draws extra water with it, leading to the hallmark signs of increased thirst and urination.

Cushing's syndrome, also known as hyperadrenocorticism, is a hormonal imbalance that results from excessive cortisol in the bloodstream. The symptoms stem from long-term overexposure to this hormone. Excessive drinking and urination are common signs, however, they usually have a gradual onset, and owners might think it's just part of the normal aging process. Additional symptoms that may help your veterinarian distinguish it from other conditions are given below.

  • Ravenous Appetite
  • Pot-Bellied Appearance
  • Muscle Weakness
  • Skin Disease

Dehydration is common and can be a cause of increased water intake. This condition can occur in dogs of all ages and can be potentially life-threatening. A skin turgor test can be performed at home. If the skin is slow to return to position, your dog may be moderate to severely dehydrated. If the skin does not return fully to its position, your dog may be severely dehydrated and possibly in critical condition. This test is not always accurate, so if you suspect your dog may be dehydrated, seek veterinary attention immediately.

Your veterinarian will run some lab tests to determine which condition is causing increased water consumption. Each will require a blood chemistry panel, which will evaluate major organ systems and electrolytes. They will also run a complete blood count, which will assess the red and white blood cells, as well as a urinalysis. The table below provides a description of what is used to determine the right condition.

What Your Vet Will Evaluate
Conditions Testing to Help Diagnose Associated Condition
Kidney Disease Elevated kidney values (BUN and Creat), low urine specific gravity
Diabetes Mellitus Elevated blood glucose, glucose in the urine
Cushing's Syndrome Elevated liver value ALP, changes in white blood cell count, elevated cholesterol
Dehydration Positive skin turgor test, elevated liver protein (Albumin), electrolyte changes

If your senior dog is drinking more water than normal, it is time to visit your veterinarian. But before the visit, make sure to write down any questions you would like to ask. Bringing notes describing your dog's drinking and urinary behaviors may be helpful. Also, consider contacting the office ahead of time to see if they would like for you to bring in a urine sample. The more prepared you are, the less stressful the visit will be for you and your dog.

Once at the office, the vet will perform a head-to-paw examination and perform the necessary diagnostics. Based on history, exam, and testing, a diagnosis will be made. Sometimes a diagnosis is not obvious, and more testing is needed. Your veterinarian will go over all testing and recommendations for treatment. No matter what the cause of increased water consumption, your veterinarian will work with you to provide the best possible outcome for your senior dog.

Heavy breathing in dogs and puppies is characterized by rapid, laboured, or struggled breaths. Although this is a normal response if your dog has been playing or is trying to cool down, there are some situations where it can be concerning.

Fast and heavy breathing may be a sign of another serious health issue, or if severe enough, can be a sign that your dog isn’t getting enough oxygen to their tissues and organs.

What Causes Heavy Breathing In Dogs?

Since dogs can’t sweat, panting helps keep them cool after exercise or when they are in a hot environment. Certain dog breeds like french bulldogs and pugs may breathe heavier due to their shorter snouts.

However, there are certain conditions and illnesses that can cause heavy breathing in dogs, such as:

  1. Respiratory conditions, including chronic bronchitis
  2. Fluid in lungs or lung cavity
  3. Heart failure
  4. Cushing’s syndrome
  5. Heatstroke
  6. Poisoning from consuming a toxic substance1
  7. Side effects of medications
  8. Injury2

Why is my dog breathing heavy and drinking lots of water?

Heavy Breathing Vs. Normal Breathing In Dogs

In healthy dogs, normal breathing shouldn’t be laboured. A normal rate of breathing for dogs is between 10 and 35 breaths per minute, and the average dog takes about 24 breaths per minute at rest.3 If your dog displays consistently heavy breathing at rest, it may be indicative of a serious health issue.

Heavy Breathing In Puppies

In general, puppies have higher respiratory rates and heart rates compared to adult dogs. A normal breathing rate for a puppy is between 15-40 breaths per minute.4

Puppies tend to breathe more rapidly when sleeping which is likely a response to what they are dreaming about. This usually happens in the REM (rapid eye movement) stage of the sleep cycle, and may be accompanied by whimpers or leg movements—all of which are completely normal.5

Younger dogs are at a higher risk of developing infections and disease that affect the respiratory tract, so if you suspect your puppy’s breathing is outside of the norm, take them to the vet as soon as possible.6

When To Be Concerned About Your Dog’s Heavy Breathing

It’s normal for dogs to pant or breathe heavily after exercising (walking or running), playing, or if they are in a hot environment where they need to cool down. In most cases, it is no cause for alarm.

However, you should be concerned about your dog’s breathing if:

1. Your dog is breathing heavy at rest

If your dog is breathing heavy at rest, it can be a red flag for a number of serious health issues. Keep an eye on your dog’s breathing, and if the problem seems persistent, take them to the vet.

2. Your dog is displaying pale or blue gums while breathing heavy

If your dog’s gums are pale or turning blue, seek medical attention right away. This is a sign that your dog isn’t getting enough oxygen and can be a life-threatening situation.

3. Your dog is panting with a closed or partially open mouth

While panting is normal in dogs, if your dog is breathing heavily with a closed mouth or just a partially open mouth, it can be a sign of something more serious and should receive medical attention.7

4. Your dog is coughing and breathing heavy

If your dog is coughing and breathing heavy, it may be a sign of chronic bronchitis or another serious respiratory issue.

5. Your dog appears to be in distress

A dog in distress may be restless, have little to no appetite, and try to hide. Your dog may show other signs of stress such as tucking the tail between the legs and ears that are pinned back rather than being relaxed.8

If your dog is breathing heavy in addition to showing signs of distress, take them to the vet as soon as possible.

6. Your dog is making other noises while breathing heavy

If your dog is having difficulty breathing, they may also make other noises such as snorting, wheezing, or retching. These are common symptoms associated with other respiratory conditions like chronic bronchitis.

Treatment For Heavy Breathing In Dogs

Treatment for heavy breathing in dogs will vary depending on the underlying cause. Listen to your vet’s advice and administer treatment to your dog as instructed.

For dogs with respiratory problems, they may require special medications like corticosteroids and/or bronchodilators to help them breathe easier and manage their symptoms. Your dog may need oxygen therapy to stabilize their condition and ensure they are getting enough oxygen to their organs.

The AeroDawg* Chamber is specially designed to administer aerosol bronchodilators or corticosteroids for dogs with chronic bronchitis, allergic rhinitis, collapsed trachea, or other respiratory conditions.

Pay Attention To Your Dog’s Breathing

Although it’s completely normal for dogs to pant and breathe heavily from time to time, it can be a sign of a serious (and even life-threatening) issue. Pay attention to your dog’s breathing and look for other signs that may indicate a more serious issue.

Take the Canine Bronchitis Assessment to see if your dog could have chronic bronchitis.

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