Hypothyroidism happens when the thyroid gland is incapable of producing adequate thyroid hormone. According to the NLM, or the National Library for Medicine, it is a prevalent hormonal disease affecting 5 out of 100 people in the USA (12 years or older) who have hypothyroidism. 

Although most of these cases are mild, hypothyroidism must be treated as untreated hypothyroidism leads to several health concerns such as high cholesterol and heart problems over time. 

In this blog, we will understand the thyroid gland, its function, all side effects of hypothyroidism and how to treat it. Medications like Synthroid 137 mcg tablets are used to treat hypothyroidism efficiently.

Thyroid Gland & Its Functioning

The thyroid is a tiny, butterfly-shaped gland covered by the skin at the front of your neck. It is part of the endocrine system and regulates many of the body’s vital activities by generating and secreting hormones. 

[Do You Know? 

  • Hormones are chemicals in our body that carry messages or information via blood to different organs.
  • The endocrine is an intricate system of glands and organs distributed throughout the body. It is essential for managing and regulating various body functions].

The function of the Thyroid Gland

The main function of thyroid is to regulate the rate of metabolism (a chemical process to convert food into energy), which is the process through which a body converts the food eaten into energy. The following chemicals are made and released by the thyroid gland:

  • Thyroxine (T4):  It is the primary hormone made and released by the thyroid. Even though the thyroid uses this hormone the most, it doesn’t change the metabolism much. 
  • Triiodothyronine (T3): The thyroid makes less T3 than T4, but it has a much bigger effect on the metabolism than T4. When your thyroid sends T4 into your body, it can change into T3 through a process called deiodination.
  • Reverse triiodothyronine (RT3): The thyroid makes tiny amounts of RT3, which cancels out the effects of T3.
  • Calcitonin: It is a hormone that is released by the thyroid that helps your body control how much calcium is in the blood.

What Are the Side Effects of Hypothyroidism?

Hypothyroidism is when the thyroid gland doesn’t make enough thyroid hormone to keep the body working normally. Most of the time, the side effects range from mild to serious.

Your doctor will measure the amount of thyroid hormone in your blood to find out if you have hypothyroidism. Here are all side effects of hypothyroidism in our body:


Goiter is when the thyroid gets bigger. Hypothyroidism causes less thyroid hormone, so the pituitary gland tells the thyroid to make more. Most of the time, a goiter is not painful, but a big one makes your appearance strange and hard to swallow or breathe. John Hopkins Medicine says that 5 % of people in the USA are having a goiter.

[Pituitary gland is a tiny, oval-shaped organ. It’s behind your nose, near the bottom of your brain].

Cardiovascular Diseases

In hypothyroidism, heart rate and heartbeat become weaker, making the heart less effective at pumping blood throughout your body. As a result, you feel out of breath after minimal exercise. Hypothyroidism results in cardiovascular diseases as:

  • High Blood Pressure: Hypothyroidism leads to high blood pressure since it narrows the arteries (a blood vessel that carries the blood to different body parts). When you have high blood pressure, your heart has to work harder to get blood to the rest of your body. Over time, this stresses nature and causes health problems. 
  • High Cholesterol: Hypothyroidism has also been linked to increased cholesterol levels. High blood pressure and excessive cholesterol increase the risk of developing cardiovascular (heart) disease. 

Cholesterol is a sticky, waxy substance accumulated in the blood vessels. These accumulations break apart quickly and form a blood clot that results in heart attack or stroke.

Neurological Diseases

If left untreated, hypothyroidism affects the nerves carrying information between the brain, spinal cord (a long tube that connects the brain to the lower back), and the rest of the body. It leads to the development of peripheral neuropathy. 

Peripheral neuropathy is a result of damaged peripheral nerves, which are nerves outside the brain and spinal cord. This disease often makes the hands and feet feel weak, numb, and painful. It also affects other parts and processes of the body, like nutrition and urination.

Respiratory Diseases

Hypothyroidism results in a variety of respiratory diseases. If you lack sufficient thyroid hormone, your breathing muscles become weakened and your lungs function less efficiently. You may experience shortness of breath or find it difficult to exercise as a result.

Hypothyroidism also increases the likelihood of developing sleep apnea, which is characterized by difficulty inhaling during sleep.

Reproductive Diseases

Both men and women are less likely to conceive when they have hypothyroidism. Thyroid hormones regulate the number of sperm and ova produced. Men deficient in thyroid hormones struggle to maintain an erection, have malformed sperm, and have diminished sexual desire. When a man has hypothyroidism, his testosterone level is frequently discussed.

Women with hypothyroidism have three times as many period problems as other women. The most common signs are changes in flow and inconsistent periods. Infertility is also more common in women with hypothyroidism. How often should a woman get a checkup? It depends on the severity of symptoms.

How Is Hypothyroidism Treated?

To treat hypothyroidism, medication is administered to mitigate the lack of thyroid hormones. You will continue taking your thyroid medication until the end of your days. Some substances and medications reduce the effectiveness of thyroid medication. 

Inform your doctor of every medication you take and the side effects of thyroid medication for hypothyroidism, including over-the-counter medications, in order to prevent hypothyroidism medication adverse effects.

Some vitamins and supplements, especially those with iron and calcium also mess with your treatment. If you are taking vitamins, you should tell your doctor. You buy these medications at the best Canadian online pharmacy at affordable prices.


In summary, hypothyroidism is affecting people globally, caused by the inability of thyroid hormones to produce enough hormones for the proper functioning of the body. Thyroid hormones regulate metabolism and release hormones like thyroxine, triiodothyronine, reverse triiodothyronine, and calcitonin.

Talking about all side effects of hypothyroidism, it leads to severe health problems by affecting the normal functioning of various organs such as the heart, lungs, brain, and reproductive organs. Hence, it becomes crucial to treat hypothyroidism to avoid these complications efficiently.   

Categories: Health

Nicolas Desjardins

Hello everyone, I am the main writer for SIND Canada. I've been writing articles for more than 12 years and I like sharing my knowledge. I'm currently writing for many websites and newspapers. I always keep myself very informed to give you the best information. All my years as a computer scientist made me become an incredible researcher. You can contact me on our forum or by email at [email protected].