If an underactive thyroid isn't treated, it can lead to complications, including heart disease, goitre, pregnancy problems and a life-threatening condition called myxoedema coma (although this is very rare).
Untreated hypothyroidism can lead to serious complications, including heart disease and nerve damage. In rare cases, it can be fatal. Most people with hypothyroidism have to take thyroid hormone replacement long term. You will need ongoing thyroid level checks to ensure you are on the right dose.
Hypothyroidism can affect the heart and circulatory system in several ways. Lower production of thyroid hormone slows your heart rate. Hypothyroidism also makes the arteries less elastic, and blood pressure rises in order to circulate blood around the body.
General joint and muscle pains are common when hypothyroidism is not sufficiently treated, and your dosage of thyroid hormone needs to be increased. Joint and muscle weakness and pain, especially in the arms and legs, can be evidence that you need an increased dose of antithyroid drugs for your hyperthyroidism.
Does Hypothyroidism Affect Life Expectancy? With proper treatment, a person with hypothyroidism usually has a normal life expectancy, with little or no decrease in quality of life. 1 Hypothyroidism generally carries a greater life expectancy than hyperthyroidism (overactive thyroid).
Hypothyroidism is more common in older persons than younger individuals, especially among women, principally due to the rising incidence and prevalence of autoimmune thyroiditis. Furthermore, the incidence of hypothyroidism steadily increases with advancing age (Figure 1).
If an underactive thyroid isn't treated, it can lead to complications, including heart disease, goitre, pregnancy problems and a life-threatening condition called myxoedema coma (although this is very rare).
Most cases of an underactive thyroid are caused by the immune system attacking the thyroid gland and damaging it, or by damage that occurs as a result of treatments for thyroid cancer or an overactive thyroid.
Occasionally, the condition may resolve without treatment. Follow-up appointments are important to monitor hypothyroidism over time, however. If hypothyroidism doesn't go away on its own within several months, then treatment is necessary. If left untreated, this condition eventually may lead to serious health problems.
With thyroid fatigue, you may feel like you can't get through a day without a nap. You may sleep more than usual but still feel completely exhausted. You may not even have the energy to exercise. At times, you may fall asleep during the day or very quickly at night.
Thyroid disorders can have a noticeable impact on your energy level and mood. Hypothyroidism tends to make people feel tired, sluggish, and depressed. Hyperthyroidism can cause anxiety, problems sleeping, restlessness, and irritability.
Fatty foods – Fats are known to upset your body's ability to absorb thyroid replacement hormones. Fats can also prevent the thyroid's natural ability to produce hormones. Physicians recommend that you cut out all fried foods and limit your intake of fats from butter, mayonnaise and fatty meats.
If you have an untreated underactive thyroid, your risk of developing cardiovascular disease is increased. This is because having low levels of the hormone thyroxine can lead to increased levels of cholesterol in your blood.
A swollen fingertip, curved nail, and thickening skin above a nail are often signs of thyroid disease.
A person can go for many years without thyroid hormones. Indeed, people often go undiagnosed for decades despite suffering from hypothyroid symptoms.
What are the long-term effects of thyroid medication? The long-term effects of thyroid medication include weight fluctuations, sensitivity to heat, joint pain, changes to your menstrual cycle, and possibly even autoimmune dysfunction.
Over time the thyroid usually returns to its normal state. Because the stored thyroid hormone has been released, patients may become hypothyroid (where their thyroid gland produces too little thyroid hormone) for a period of time until the thyroid gland can build up new stores of thyroid hormone.
Cortisol, the main hormone produced in response to stress, can suppress pituitary function and keep the thyroid-stimulating hormone (TSH) from being released, thereby inducing hypothyroidism, according to Dr. Wasser.
Neither condition is more dangerous than the other. Both hypothyroidism and hyperthyroidism can lead to serious complications if left untreated. And both conditions can be life-threatening in severe cases.
Which thyroid condition is more severe: hypothyroidism or hyperthyroidism? Neither hyperthyroidism nor hypothyroidism is worse than the other, however, hypothyroidism is 5 times more common than hyperthyroidism.
Hypothyroidism can be classified as primary (due to thyroid hormone deficiency), secondary (due to TSH deficiency), tertiary (due to thyrotropin-releasing hormone deficiency), and peripheral (extra-thyroidal; panel).