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There are plenty of good reasons why a dog might get thirsty and get the urge to drink: it is parched from the environment’s heat; it’s due to a rigorous activity from outdoors, the dog had recently just vomited or has diarrhea, or had blood loss.

In another case, the dog may have simply developed a habit of drinking water for no good reason.

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But there are also other reasons why your pet might be drinking more water than usual that may not border on a natural proclivity to hydrate itself. Oftentimes the case, it boils down to an underlying medical condition that an owner may or may not be aware of.

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Here are a few reasons why a canine would be drinking more than usual as induced by a health impairment.

1. Kidney disease

The dog’s kidneys—like its human counterpart—are the organs responsible for the filtration of the blood. It separates the blood from impurities.

When a dog’s kidneys start to fail, this means that the kidneys have already filtered far too many toxins than they could handle. As a result, the filtering process becomes compromised, thereby resulting to damages.

In response to the kidneys’ reduced ability to function properly, the brain sends a signal that makes a dog drink more water in an attempt to detoxify the body.

2. Diabetes mellitus or insipidus

Diabetes mellitus and diabetes insipidus are two different medical conditions that share similar symptoms— an increased thirst which could result in drinking too much, and urinating frequently.

In the case of diabetes mellitus, the dog drinks much water to facilitate the elimination of excess sugar that lingers in the dog’s bloodstream.

On the other hand, diabetes insipidus is as a result of a miscommunication between the brain and the adrenal glands, subsequently affecting the body’s hormone responsible for the moderation of thirst and urination.

3. Cushing’s disease

While one of the telling signs of Cushing’s disease is indeed thirst, there are also other telltale signs that the dog may indeed has it as a disease.

For instance, some telltale signs of Cushing’s disease include the development of pot belly, the presence of thinning of hair or skin problems, and display of increased hunger.

4. Addison’s disease

Addison’s disease happens when the body’s immune system mistakenly attacks the adrenal glands as if though it is a foreign and harmful thing to the human body, thereby disrupting the balance of potassium, sodium, and water in the body. The manifestations of this disease are characterized by the following: muscle weakness, lethargy, and weight loss.

5. Liver disease

Like the kidneys, the liver is responsible for keeping the body free from harmful toxins. But when damaged to a great extent—around 70% of the liver—this critical organ becomes ineffective in what it normally does, subsequently raising the level of toxins in the body.

Similar to the body’s response when the body is filled with toxins, the animal afflicted with this disease exhibit increased thirst due to the body’s attempt at detoxifying itself.

6. Infection

Drinking plenty of water has a way of healing the body when it gets infected. This is very much apparent among dogs as well.

7. Hypercalcemia

When the canine’s body produces too much calcium to the extent that they’re present in the kidneys, the dog’s body tries to fix itself by flushing out these calcium crystals from the body. The body does this by inducing thirst; as a result, the canine tends to drink more fluids, and urinate more.

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