Hypothyroidism is a common condition where the thyroid doesn't create and release enough thyroid hormone into your bloodstream. This makes your metabolism slow down. Also called underactive thyroid, hypothyroidism can make you feel tired, gain weight and be unable to tolerate cold temperatures.
Problems with the thyroid include a variety of disorders that can result in the gland producing too little thyroid hormone (hypothyroidism) or too much (hyperthyroidism). Thyroid disorders can affect heart rate, mood, energy level, metabolism, bone health, pregnancy and many other functions.
Hypothyroidism can result in poor heart function, an enlarged heart and irregular heartbeats. It can also result in high levels of low-density lipoprotein (LDL) cholesterol — the "bad" cholesterol — that is a risk factor for cardiovascular disease and heart failure.
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.
If Hashimoto's is left untreated, complications can be life-threatening. Because the hormones produced by the thyroid are so vital to the body's functions, untreated Hashimoto's can lead to serious and even life-threatening complications.
A swollen fingertip, curved nail, and thickening skin above a nail are often signs of thyroid disease.
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).
Blood tests can help diagnose this condition. They can measure the amount of thyroid hormone and thyroid-stimulating hormones in your blood. The goal of treatment is to return your levels of thyroid hormone back to normal. Untreated hypothyroidism may lead to anemia, low body temperature, and heart failure.
There are several different types of thyroid disease, including hyperthyroidism, hypothyroidism, thyroiditis and Hashimoto's thyroiditis.
Thyroid hormones also influence the quality of your skin in various ways. For example, with hyperthyroidism, you may notice itchy and dry patches of skin. Your face may feel softer and swollen. You may even notice swelling around your fingertips.
In hypothyroidism, the skin tends to be pale both because of the dermal mucopolysaccharides and dermal water content. In addition, increased dermal carotene may appear as a prominent yellow hue on the palms, soles and nasolabial folds.
Myxedema crisis (also called myxedema coma), the most severe form of hypothyroidism, is rare. It occurs when thyroid hormone levels get very, very low.
The most severe form of hypothyroidism is myxedema, a medical emergency. Hypothyroidism can be caused by a problem with the thyroid itself (primary), or by the malfunction of the pituitary gland or hypothalamus (secondary).
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.
Anti-thyroid antibodies (ATA) tests, such as the microsomal antibody test (also known as thyroid peroxidase antibody test) and the anti-thyroglobulin antibody test, are commonly used to detect the presence of Hashimoto's thyroiditis.
Overt hypothyroidism or full-blown disease
The end-stage of Hashimoto's is when your thyroid has become so damaged that you no longer have enough thyroid hormones and have to go on medication.
Symptoms of a Hashimoto's Flare-Up
Constipation. Dry skin. Puffy face. Muscle aches.
Persistent nausea, vomiting, diarrhoea and abdominal pain can be caused by hypothyroidism. Hypothyroidism is a rare cause of these symptoms.
The oral cavity is adversely affected by either an excess or deficiency of thyroid hormone. Childhood hypothyroidism known as cretinism is characterized by thick lips, large protruding tongue (macroglossia), malocclusion and delayed eruption of teeth.
Specifically, hypothyroidism may cause: Muscle aches, tenderness and stiffness. Joint pain and stiffness, particularly in the hands and knees in adults. Swelling of the small joints in the hands and feet.
For most people, this cough is a dry, hacking sort of cough.” In addition to cough, thyroid growth can lead to pressing on the vocal cords and a hoarse voice, or pressing on the esophagus and difficulty swallowing food. You may also notice swelling or pain in the front of your lower neck, and even into your ears.