9 Worst Dog Hypothyroidism Symptoms That Can Be Deadly!

Hypothyroidism is a condition in which the thyroid gland does not produce enough thyroid hormone. There are many signs of Hypothyroidism in dogs. Usually, dog Hypothyroidism Symptoms include weight gain, lethargy, and changes in skin and coat health

Suppose your canine is exhibiting any of these symptoms. In that case, it is crucial to have them checked for Hypothyroidism by a veterinarian. 

Left untreated, Hypothyroidism can lead to more serious health problems. In this article, we will talk about what causes Hypothyroidism in canines and how to treat them.

What Is Hypothyroidism?

The thyroid gland is responsible for producing hormones that regulate many activities in the body, including metabolism. 

When the thyroid gland does not have enough of these hormones, it is said to be hypothyroid. In short, this is low thyroid in dogs

Symptoms of Hypothyroidism can vary but often include weight gain, fatigue, and a feeling of being cold all the time. 

Dogs can also develop Hypothyroidism and may show some of the same symptoms as people. 

However, there are some differences between the symptoms of Hypothyroidism in dogs and those in people. 

For example, dogs may have a higher tendency to eat or overeat, which can lead to weight gain. 

The dog may also show signs of anxiety and may be more susceptible to lethargy or depression. 

In addition, some breeds of dogs are more prone to thyroid problems. It includes Cocker Spaniels, Dachshunds, Poodles, and Miniature Schnauzers. 

Therefore, dogs that have had thyroid surgery should be closely monitored for symptoms of Hypothyroidism.

Difference Between Thyroid And Hypothyroidism

Thyroid and Hypothyroidism are both conditions that affect the thyroid gland. But there are some significant differences between them. 

Thyroid is a condition where the thyroid gland is overactive. But Hypothyroidism is a condition where the thyroid gland is underactive. This can lead to different symptoms in each case.

Thyroid can cause changes in heart rate, energy levels, and weight. People with thyroid often have an increased heart rate, feel more energetic, and lose weight. 

Hypothyroidism can cause changes in mood, energy levels, and weight. People with Hypothyroidism often feel tired, have a low mood, and gain weight.

What Caused Hypothyroidism In Dogs?

There are many reasons that dogs can develop Hypothyroidism. One common cause is when the dog’s immune system attacks and destroys the cells in the thyroid gland. 

This can be the result of a virus or other infection, or it may happen for no known reason. 

In addition, some dogs develop Hypothyroidism as a side effect of treatment with certain medications. Such as radiation therapy or chemotherapy. 

And in some cases, the cause of Hypothyroidism is never determined. So what Are the Signs of Hypothyroidism in Dogs

Most dogs with Hypothyroidism are very slow to respond to treatment. They may have slurred speech, difficulty seeing, and loss of muscle control. 

They might also have decreased energy levels and weight gain. Let’s discuss dogs hypothyroidism symptoms in more detail in the next paragraph.

9 Dogs Hypothyroidism Symptoms

One of the most common health problems in dogs is Hypothyroidism. But what are the dog’s thyroid problem symptoms? 

Generally, this disease can cause a wide variety of symptoms. Here are some standard dog hypothyroidism symptoms checklist below: 

  • Weight gain
  • Lethargy
  • Hair loss
  • Poor appetite
  • Poor coat
  • Skin infections
  • Inactivity
  • Excessive hair shedding
  • seizures
  • Heart disease
  • Increase plus rate
  • Liver Disease

Suppose your dog is showing any of these signs. In that case, it’s essential to have him checked by a veterinarian to determine if he has Hypothyroidism. 

Left untreated, Hypothyroidism can lead to more serious health problems in dogs. 

Below are 9 dog hypothyroidism symptoms that you should not ignore:

1. Weight Gain

One of the most common diseases that leads to weight gain in dogs is Hypothyroidism. Hypothyroidism is a condition that arises when the thyroid gland does not produce enough thyroid hormone. 

The lack of this hormone can lead to several problems, one of which is weight gain. This is because the thyroid hormone plays a role in regulating metabolism. 

When the thyroid gland does not produce enough hormone, the metabolism slows down, leading to weight gain.

2. Lethargy

Dog’s Lethargy problem due to Hypothyroidism is a serious health condition that requires treatment. 

Left untreated, the state can lead to other health problems and even death. 

Suppose your dog is lazy and has other symptoms of Hypothyroidism. Take them to the veterinarian for diagnosis and treatment.

3. Hair Loss

Dogs can suffer from hair loss problems just like humans do. One of the most common reasons for hair loss in dogs is an underactive thyroid gland. They are also known as Hypothyroidism. 

Suppose your dog is losing their hair. In that case, it’s essential to take them to the veterinarian for a proper diagnosis.

Some symptoms of Hypothyroidism in dogs include excessive shedding, thinning fur, bald patches, and a dry and flaky coat. 

If your dog is experiencing any of these symptoms, it likely has a thyroid problem.

4. Poor Appetite

Dogs with Hypothyroidism often have a poor appetite. The dog’s reduced appetite might be caused by low thyroid hormone levels or illness.

Dogs with Hypothyroidism may also be less active and therefore eat less. Treatment for Hypothyroidism usually resolves the poor appetite problem.

5. Poor Coat

Many things, including Hypothyroidism, can cause a poor coat. When the thyroid gland is not working correctly. It can’t produce the hormones needed for average hair growth. 

This can lead to hair loss and a thin, dry coat. Dogs with Hypothyroidism may also experience excessive shedding and skin problems.

6. Skin Infections

Dogs with Hypothyroidism are prone to skin infections. In short, skin infections are one of the common dog Hypothyroidism symptoms. 

The lack of thyroid hormone can lead to a weakened immune system, which makes dogs more susceptible to infection. 

Skin infections in dogs can be caused by various bacteria, fungi, and parasites. Symptoms of a skin infection include redness, swelling, discharge, and odor. 

Treatment for a skin infection depends on the cause. For example, antibiotics may prescribe for bacterial infections. Likewise, antifungals may prescribe medications for fungal infections. 

And Antiparasitics may prescribe medications for parasitic infections.

7. Inactivity

Dog’s inactivity due to Hypothyroidism is a growing problem. The body’s metabolism slows down when the thyroid gland doesn’t produce enough of these hormones. 

Therefore, it causes various symptoms, including inactivity. Left untreated, hypothyroidism can lead to obesity, heart disease, and other health problems.

8. Heart Disease

Heart disease is one of the most common dog Hypothyroidism symptoms. This condition occurs when the thyroid gland is not working correctly, which can lead to this issue. 

If you do not treat it, it can be fatal, and the dog may die. Several types of heart disease can occur in dogs, but the most common is congestive heart failure.

9. Liver Disease

When a dog is hypothyroid, one of the symptoms that may develop is liver disease. 

The liver is responsible for many critical bodily functions. Such as breaking down food and nutrients, removing toxins from the blood, and producing proteins and cholesterol. 

When it is not working correctly, it can cause various problems. 

One common sign of liver disease in dogs is jaundice. This occurs when there is an accumulation of bilirubin in the blood. 

Which causes the skin and whites of the eyes to turn yellow. Other common symptoms include vomiting, diarrhea, loss of appetite, weight loss, and weakness. 

Suppose your dog is displaying any of these symptoms. In that case, it is essential to have them evaluated by a veterinarian as soon as possible.

Dog Thyroid Symptoms

Dogs are susceptible to thyroid problems just as people are. The thyroid gland is responsible for producing hormones that control metabolism. 

When the thyroid is not working correctly, it can result in various symptoms. 

Some common dog thyroid symptoms are below:

  • Weight gain or loss,
  • Excessive thirst
  • Urination
  • Hair loss,
  • Changes in behavior

Suppose you notice any of these symptoms in your dog. It is essential to have them checked by a veterinarian. 

Left untreated, thyroid problems can lead to more severe health issues.

Pictures Of Dogs With Thyroid Problems

How To Test For Hypothyroidism In Dogs?

If you suspect your dog may have Hypothyroidism. You can perform a few tests to diagnose the condition.

The first step is to have your dog’s blood tested for thyroid hormone levels. This test includes T3, T4, and TSH. 

You can conduct these blood sample tests in any veterinary hospital or lab. This will help determine if there is an actual deficiency in thyroid hormone. 

If the blood test results are abnormal. Your veterinarian may then recommend a thyroid ultrasound or a thyroid biopsy to confirm the diagnosis.

If your dog is diagnosed with Hypothyroidism, several treatment options are available. 

Treatment usually involves taking daily medication to replace the missing thyroid hormone. 

With proper treatment, most dogs will fully recover and enjoy good health for many years.

Risk Of Hypothyroidism In Dogs

One in five dogs will develop Hypothyroidism at some point in their life. The thyroid is a small, butterfly-shaped gland in the neck. That produces hormones that help control metabolism.

 When the thyroid isn’t working correctly, it can lead to several health problems. It includes weight gain, hair loss, and fatigue.

While any hound can develop Hypothyroidism, certain breeds are more at risk than others. 

Dogs who are overweight, have diabetes mellitus, or are female are all more likely to develop the condition. 

Mild Hypothyroidism symptoms may go unnoticed for months or even years.

If your dog is showing symptoms of Hypothyroidism, it’s essential to get them checked out by a veterinarian. 

Treatment for the condition typically involves lifelong hormone replacement therapy.

Can Dog Hypothyroidism Be Cured?

Yes, it can cure canine Hypothyroidism. The most common form of treating Hypothyroidism in dogs helps to restore the dog’s thyroid levels to normal. 

However, suppose the underlying cause of Hypothyroidism is not corrected. 

In that case, the dog will likely experience a relapse and require further treatment. 

In some cases, surgery may also be necessary to correct the problem.

Dog hypothyroidism treatment usually involves taking medication to restore the pup’s thyroid levels to normal. 

With proper treatment, most canines will make a full recovery.

Dog Hypothyroidism Diet And Foods

Canines with Hypothyroidism need a special diet that is low in iodine. Some foods high in iodine include seaweed, shellfish, and dairy products. 

Feeding your dog a diet that is low in iodine can help control the symptoms of Hypothyroidism. 

Many foods contain thyroid-supportive nutrients that can help improve your dog’s health. 

These nutrients include selenium, zinc, and vitamin E. You can find these nutrients in foods like salmon, beef, spinach, and pumpkin. 

Overall, foods that are high in fiber and low in fat are suitable for dogs with the condition. 

Fresh fruits and vegetables are also a good choice, as well as whole grains. In addition, lean meats such as chicken or fish are good protein sources and should be included in the diet. 

Dogs with Hypothyroidism should avoid processed foods, fatty meats, and sugary snacks.

Dog Hypothyroidism Natural Treatment And Home Remedies

Hyperthyroidism is dogs’ most common endocrine disease. Its caused by an overactive thyroid gland. 

Thyroid hormones regulate metabolism, which is the process of converting food into energy. When the thyroid gland does not produce enough hormones, it results in Hypothyroidism.

Symptoms of Hypothyroidism in dogs include weight gain, sluggishness, hair loss, and low body temperature.

Here are a few home remedies to help treat Hypothyroidism in dogs. One treatment is to give your dog supplements that contain kelp or seaweed. 

Kelp contains iodine, which is necessary for the proper function of the thyroid gland. Another remedy is to give your raw eggs or egg whites.

How To Prevent Hypothyroidism In Dogs?

There are many ways to help prevent Hypothyroidism in dogs. One of the most important is to feed them a healthy diet. 

Dogs that are overweight are more likely to develop the disease. So keeping them at a healthy weight is essential. 

Giving them plenty of exercise is also crucial. Another way to help prevent Hypothyroidism is to ensure they’re not exposed to chemicals. And toxins that can harm their thyroid gland. 

Finally, regular checkups with your veterinarian can help catch the disease early, when it’s easier to treat.

Hypothyroidism In Dogs Life Expectancy

Hypothyroidism is a condition that affects the thyroid gland and results in an underactive thyroid. 

This can lead to several health problems in dogs, including a shorter life expectancy. 

In addition, dogs with Hypothyroidism may have a more challenging time regulating their body temperature. As a result, they may be more prone to developing infections.

In general, Hypothyroidism in dogs has a life expectancy of 3-5 years. However, this can vary depending on the severity of the condition and how well it is managed. 

Dogs with severe Hypothyroidism may only live for a year or two. In contrast, those with mild cases may live for up to 10 years.

Therefore, treatment is usually lifelong and must be consistent to ensure the best possible outcome.

What Is The Treatment For Dog With Thyroid Cancer?

While there is no cure for thyroid cancer in dogs. Several treatment options can prolong a dog’s life and improve its quality. 

Treatment options include surgery, radiation therapy, and chemotherapy. In some cases, may use a combination of these treatments. 

The treatment recommended will depend on the stage and type of thyroid cancer the dog has. 

Your veterinarian will work with you to create a treatment plan that is best for your dog. 

Make sure to ask any questions you have and keep an open line of communication with your veterinarian.

Final Thoughts

In conclusion, it is essential to be aware of the signs and symptoms of dog hypothyroidism. So that you can get your pet the treatment they need. 

If you suspect your dog may be suffering from this condition. Please get in touch with your veterinarian for diagnosis and treatment.


Q. How to understand Dog’s Thyroid Problems Before They Start?

A. Actually, you cant understand dogs’ thyroid problems before they start. However, you can do a few things to help prevent your dog from developing thyroid problems. 

First, feed them a high-quality diet low in processed foods and rich in antioxidants. 

Second, make sure they get plenty of exercises. And third, to keep their stress levels down. 

Finally, if your dog does start showing signs of thyroid problems, take them to the vet. 

Q. Can Hypothyroidism in dogs be reversed?

A. Yes, Hypothyroidism in dogs can be reversed, but it may require lifelong treatment. 

Treatment usually involves a daily pill to replace the thyroid hormone the dog lacks.

Q. What foods should a dog with Hypothyroidism avoid?

A. Dogs with Hypothyroidism should avoid foods that are high in iodine. These foods include seaweed, kelp, and other seafood.

Q. How long do dogs live with thyroid problems?

A. Dogs with thyroid problems can generally expect to live an average lifespan as long as the condition is treated correctly. 

However, if left untreated, thyroid problems can lead to many health complications that can shorten a dog’s life.

Q. What is graves disease in dogs

A. Graves disease is a condition that primarily affects dogs and other animals. The cause of Graves disease is unknown, but it is thought to be an autoimmune disorder. 

Graves disease symptoms include weight loss, increased appetite, vomiting, diarrhea, muscle weakness, and changes in the dog’s coat. 

The most common treatment for Graves disease is steroids to suppress the immune system.