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You/your child has been diagnosed with hypothyroidism. This occurs when the thyroid gland, one of the body’s endocrine glands, does not make enough thyroid hormone. Thyroid hormone affects weight gain and growth, body temperature, the heartbeat, and brain development. This handout will answer questions you may have about the condition and how it is treated.
Gland – A special group of cells in the body that produce and release a hormone.
Hormone – A chemical messenger sent out from a gland into the bloodstream where it can carry its message to other cells in the body.
Euthyroid – “Eu” means “normal.” Euthyroid means the level of thyroid hormone is normal.
Hypothyroid – “Hypo” means “too little, not enough.” Hypothyroid means there is not enough thyroid hormone.
The Thyroid Gland
The thyroid is a butterfly-shaped gland in the center front of the neck. A healthy thyroid sends out thyroid hormone (called thyroxine or T4). When the thyroid gland gets a message from the brain (thyroid stimulating hormone or TSH) that the body needs thyroid hormone, the thyroid gland sends them into the bloodstream. The blood then carries thyroid hormone all over the body.
Swelling in the front of the neck called a goiter
Feeling cold all the time
Feeling tired or sleepy during the day
Rough or brittle hair
Mild weight gain (but does not often cause obesity)
Puffiness in face, hands, and feet
Hypothyroidism is treated with a thyroid hormone pill. Take this pill at the same time every day as part of your daily routine so you don’t forget to take it. To help it absorb, avoid taking the pill with calcium or iron.
A growing child will need different doses of thyroid hormone as they grow. Blood tests are needed every 3-6 months to see if the current dosage is correct or if it needs to be changed.
Symptoms will go away with treatment, but it is still very important to keep taking the medicine. Without the pills, the symptoms will return.
The doctor or nurse will look at the thyroid in several ways during clinic visits.
Feel the thyroid gland
Measure heart rate, blood pressure, height, and weight
Check skin and hair
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