Common Causes of Hypothyroidism

Common Causes

What is Hypothyroidism

Hypothyroidism is a condition in which the thyroid gland produces an abnormally low level of hormones needed by the body to function normally. These hormones regulate metabolism, energy, body temperature, and other crucial bodily functions. Without them, people can experience symptoms such as fatigue, constipation, depression, cold sensitivity, joint pain, weight gain, thinning hair, and difficulty focusing.

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and Health

There are several common causes of hypothyroidism that can affect your health, such as:

Autoimmune Response

The body’s immune system sometimes reacts abnormally and can attack the thyroid gland, causing it to produce fewer hormones than normal. This is known as Hashimoto’s Disease and is one of the most common causes of hypothyroidism.

Radiation Therapy

Radiation therapy such as radiation used to treat cancer can also damage the thyroid and lead to hypothyroidism.


Certain medications, such as lithium, can lead to thyroid problems and thus hypothyroidism.

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Iodine Deficiency

Iodine is an important mineral needed by the body to produce thyroid hormones and a deficiency in it can lead to hypothyroidism.

Health Effects of Hypothyroidism

Hypothyroidism can have an effect on many aspects of your health, from physical wellbeing to mental wellbeing. Common symptoms of hypothyroidism include:

  • Fatigue
  • Weight Gain
  • Hair Loss
  • Constipation
  • Low Libido
  • Depression
  • Mood Swings
  • Memory Loss

Untreated hypothyroidism can cause further health complications, such as infertility, goiters, heart palpitations, and an enlarged heart.


Hypothyroidism can have an effect on your health, causing symptoms such as weight gain, fatigue, hair loss, and mood swings. It is important to get tested for hypothyroidism if you are experiencing any of these symptoms, as it is easily treatable with medication. Common causes of hypothyroidism include autoimmune response, radiation therapy, medications, and iodine deficiency. If you have any questions or concerns about hypothyroidism and its effects, speak to your healthcare provider.