An underactive thyroid, also known as hypothyroidism, can cause many problems throughout the body since the thyroid is an important part of keeping the body functioning. A slowdown of thyroid production results in fatigue, weight gain and constipation. Left untreated, however, hypothryoidism can lead to more severe symptoms.
Cognitive Problems
Untreated hypothyroidism can cause memory loss and depression. Both conditions can lead to difficulty in concentration and daily activities.
Muscle Pain
Muscle aches and cramps are not uncommon in people with underactive thyroids. As the thyroid production slows even further, these symptoms become more frequent and severe.
Goiter
The lack of thyroid hormone can cause the thyroid gland to enlarge and form a "goiter." This mass on the neck can interfere with the function of the esophagus and trachea.
Potential Dangers
Life-threatening symptoms from an underactive thyroid are rare. Still, heart failure and comas have occurred in extreme cases of hypothyroidism.
Considerations
An underactive thyroid is easily treated with medication. As long as the levels are monitored by a physician and kept in the normal range, there should be few symptoms from hypothyroidism.
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