Hypothyroidism and Hashimoto’s Thyroiditisenparentshttps://kidshealth.org/EN/images/headers/Hypothyroidism_Hashimotos_Thyroiditis_2.jpgAn underactive thyroid makes too little thyroid hormone, causing hypothyroidism. Hashimoto's thyroiditis, which causes most cases of hypothyroidism in kids and teens, is a condition in which the immune system attacks the thyroid.thyroid, disease, disorder, diseases, disorders, hypothyroidism, hyperthyroidism, overactive, underactive, neck, swollen, hormone, hormones, graves disease, hashimoto disease, immunity, immune, autoimmune, immune system, goiter, pituitary, gland, depression, depressed, weight, radioactive iodine, secrete, secretes, secretion, endocrine, endocrinary, endocrine system, needle biopsy, neoplasia, thyroiditis, deficiency, deficient, what does, mean?, neoplasm, neoplasms, what are the signs of thyroid disease?, how do people know if they have thyroid disease?, what is thyroid disease?thyroiditis, thyroid hormones, hormones, metabolism, endocrinologist, rheumatologist, genetics, genetic, hypothyroidism, hyperthyroidism, amino acids, autoimmune diseases, biopsy, irregular menstrual periods, radioactive iodine, goiters, thyroid nodules, thyroid scan, how does my thyroid affect my growth, thyroxine, triiodothyronine, cysts, tumors, my neck is swollen, CD1Endocrinology09/28/201710/24/201910/24/2019Tal Grunwald, MD07/02/20188efef5d8-104a-4baa-878c-a02884d9f4afhttps://kidshealth.org/ws/RadyChildrens/en/parents/hypothyroidism.html/<h3>What Is the Thyroid?</h3> <p>The thyroid is a small <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/endocrine.html/">gland</a> below the skin and muscles at the front of the neck, at the spot where a bow tie would rest.</p> <p>It's brownish red, with left and right halves (called lobes) that look like a butterfly's wings. It weighs less than an ounce, but helps the body do many things, such as get energy from food, grow, and go through <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/development-foyer.html/">sexual development</a>.&nbsp;In younger children, it is also important for brain development.</p> <h3>What Is Hypothyroidism?</h3> <p><strong>Hypothyroidism</strong> (or <strong>underactive thyroid</strong>) is when the thyroid gland doesn't make enough of some important hormones. This makes the body use up energy more slowly, and chemical activity (metabolism) in the cells slows down.</p> <p>Hypothyroidism is a common condition, especially in adult women. But kids can have it too. Some children are born with it — this is called <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/congenital-hypothyroidism.html/">congenital hypothyroidism</a>. Others develop it later, usually late in childhood or as teens. The most common cause of hypothyroidism in kids and teens is the autoimmune disease <strong>Hashimoto's thyroiditis</strong>.</p> <p><img class="center_this" title="A view of the thyroid, a gland below the skin and muscles at the front of the neck, as described in the article." src="https://kidshealth.org/EN/images/illustrations/thyroid_a_enIL.jpg" alt="A view of the thyroid, a gland below the skin and muscles at the front of the neck, as described in the article." /></p> <h3>What Are the Signs &amp; Symptoms of Hypothyroidism?</h3> <p>A person with mild hypothyroidism may feel just fine. In fact, it might cause no symptoms at all.</p> <p>But if thyroid hormone levels get too low, symptoms can become more obvious. These include:</p> <ul> <li>sluggishness</li> <li><a href="https://kidshealth.org/ws/RadyChildrens/en/parents/understanding-depression.html/">depression</a></li> <li>dry skin or hair loss</li> <li>feeling cold</li> <li>muscle weakness</li> <li>poor memory or trouble concentrating</li> <li><a href="https://kidshealth.org/ws/RadyChildrens/en/parents/constipation.html/">constipation</a></li> <li>facial puffiness&nbsp;</li> <li>weight gain (even when not eating more or exercising less)</li> <li>slowed growth</li> <li>slow sexual development</li> <li><a href="https://kidshealth.org/ws/RadyChildrens/en/parents/menstrual-problems.html/">irregular menstrual periods</a> in girls</li> </ul> <h3>What Is Hashimoto's Thyroiditis?</h3> <p><strong>Hashimoto's thyroiditis</strong> (hah-she-MOE-toes thy-roy-DYE-tiss) is an autoimmune disease. It causes most cases of hypothyroidism in kids and teens. Hashimoto's thyroiditis is also called <strong> chronic </strong> <strong>lymphocytic thyroiditis</strong>.</p> <h3>What Happens in Hashimoto's Thyroiditis?</h3> <p>Hashimoto's thyroiditis is an ongoing condition in which the <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/immune.html/">immune system</a> attacks the thyroid. Often, this prevents the thyroid from making enough thyroid hormone, causing hypothyroidism. The body responds by sending a message to the thyroid to work harder to make enough hormone.</p> <p>This, and the swelling the immune system causes as it attacks the gland, can make the thyroid get bigger, leading to a <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/goiter.html/">goiter</a>. The thyroid can keep changing size over months or years. Surgery is sometimes done to treat goiters, especially if the thyroid is big enough to cause problems with swallowing. But this is rarely needed in children.</p> <h3>How Are Hypothyroidism and Hashimoto's Thyroiditis Diagnosed?</h3> <p>To diagnose hypothyroidism and Hashimoto's thyroiditis, doctors ask about a person's symptoms, do an exam, and order blood tests. The tests measure:</p> <ul class="kh_longline_list"> <li><strong>Thyroid hormone levels</strong>, particularly <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/test-t4.html/">thyroxine (T4)</a> and<a href="https://kidshealth.org/ws/RadyChildrens/en/parents/test-tsh.html/"> thyroid-stimulating hormone (TSH)</a>. TSH is a hormone made in the pituitary gland (a pea-sized gland just beneath the brain). More TSH is released into the blood when the brain and pituitary sense that the levels of thyroid hormone in the blood are too low. TSH stimulates the thyroid to work harder to make more thyroid hormone.</li> <li><strong>Some antibodies</strong> (proteins made by the immune system). High levels of these antibodies in the blood are a sign that the gland is being attack by the immune system in Hashimoto's. The two antibodies commonly measured are <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/test-tgab.html/">thyroglobulin antibodies (TgAb)</a> and <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/test-peroxidase.html/">thyroid peroxidase antibodies (TPO)</a>.</li> </ul> <h3>How Are Hypothyroidism and Hashimoto's Thyroiditis Treated?</h3> <p>Doctors treat an underactive thyroid with daily thyroid hormone replacement pills. These will bring the body's levels of thyroid hormone back to normal.</p> <p>This treatment is fairly simple, but a person will have doctor visits several times a year for an exam, blood tests, and medicine changes as needed.</p> <h3>What Else Should I Know?</h3> <p>In rare cases, the immune system of a child with Hashimoto's can cause inflammation in the <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/brain-nervous-system.html/">brain and nervous system</a>. Symptoms can include strange behavior, confusion, muscle twitching, and <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/seizure.html/">seizures</a>.</p>Hipotiroidismo y tiroiditis de HashimotoEl hipotiroidismo (o metabolismo disminuido) ocurre cuando la tiroides no produce una cantidad suficiente de algunas hormonas importantes. Esto hace que el cuerpo use la energía más lentamente y la actividad química (metabolismo) de las células se hace más lento.https://kidshealth.org/ws/RadyChildrens/es/parents/hypothyroidism-esp.html/fed08d8f-a512-46ec-b238-b3f597918801
Blood Test: T3 Resin Uptake (T3RU)Doctors may order the T3 resin uptake when a child's symptoms or previous blood tests seem to suggest thyroid dysfunction.https://kidshealth.org/ws/RadyChildrens/en/parents/test-t3ru.html/93ece2e7-eb5b-485d-8baf-c1b2f5c8d3a0
Blood Test: T4 (Thyroxine)Doctors may order the T4 blood test if symptoms suggest any kind of thyroid disorder.https://kidshealth.org/ws/RadyChildrens/en/parents/test-t4.html/ef66633d-7883-4a10-bcf5-146b082519e2
Blood Test: Thyroid Peroxidase AntibodiesThe thyroid peroxidase antibodies test is primarily used to help diagnose and monitor autoimmune conditions involving the thyroid gland, including Hashimoto's thyroiditis and Graves disease.https://kidshealth.org/ws/RadyChildrens/en/parents/test-peroxidase.html/04fa9666-9d47-4c66-9a18-bdc2dfbbf07f
Congenital HypothyroidismSome babies are born with a thyroid gland that didn't develop correctly or doesn't work as it should. This is called congenital hypothyroidism.https://kidshealth.org/ws/RadyChildrens/en/parents/congenital-hypothyroidism.html/cf233f9f-7012-4613-8f89-3e68818fae3a
Goiters and Thyroid NodulesAn enlarged thyroid gland is a lump that can be felt under the skin at the front of the neck. When it's big enough to see easily, it's called a goiter. A thyroid nodule is a lump or enlarged area in the thyroid gland.https://kidshealth.org/ws/RadyChildrens/en/parents/goiter.html/d64d8507-bbce-435d-8662-fa6a1f1726fa
Hyperthyroidism and Graves’ Disease Hyperthyroidism happens when the thyroid gland sends too much thyroid hormone into the blood. The most common cause of hyperthyroidism is Graves' disease.https://kidshealth.org/ws/RadyChildrens/en/parents/hyperthyroidism.html/95857eb0-5b82-4454-b9c9-418e19008b30
Thyroid CancerThyroid cancer is uncommon in kids. Most who develop it do very well when the cancer is found and treated early.https://kidshealth.org/ws/RadyChildrens/en/parents/thyroid-cancer.html/2e41b9dc-025b-497c-9928-6535c9f64b34
Thyroid DiseaseThe thyroid gland makes the hormones that help control metabolism and growth. A thyroid that isn't working properly can cause thyroid disease. https://kidshealth.org/ws/RadyChildrens/en/parents/thyroid-disease.html/84573bd7-3de9-46b0-b1af-0f7a762c5d48
Thyroid TestsThyroid blood tests check thyroid function and can help doctors diagnose thyroid disorders such as hypothyroidism and hyperthyroidism.https://kidshealth.org/ws/RadyChildrens/en/parents/thyroid-tests.html/5dc5d0a7-d45d-4fd2-9cd4-bb534bf1d7b3
What Is the Thyroid?Do you know just how important the thyroid is? It helps you grow and affects your energy level.https://kidshealth.org/ws/RadyChildrens/en/kids/thyroid.html/8484750c-4f47-4003-aaec-eb0992df2964
kh:age-allAgesOrAgeAgnostickh:clinicalDesignation-generalPediatricskh:genre-articlekh:primaryClinicalDesignation-endocrinologyEndocrine Glands, Growth & Diabeteshttps://kidshealth.org/ws/RadyChildrens/en/parents/medical/endocrine/587da900-34e2-43e7-a2a4-5a4ed4bc7781Genetic, Chromosomal & Metabolic Conditionshttps://kidshealth.org/ws/RadyChildrens/en/parents/medical/genetic/d50d4cf8-0cb6-4a6b-8d58-1fe7996c491ehttps://kidshealth.org/EN/images/illustrations/thyroid_a_enIL.jpg