The thyroid gland produces thyroid hormone, which regulates many of the body's functions. If there is too little of the thyroid hormone (hypothyroid), too much (hyperthyroid) or other problems with the gland (such as Hashimoto's disease, thyroid cancer) it can cause many different symptoms. In women, it can also affect hormonal cycles and pregnancy.
Digestive System
Thyroid problems can cause changes in the digestive system. Hypothyroidism usually causes constipation, while hyperthyroidism can bring on diarrhea.
Energy Level
If the thyroid gland is not functioning properly, one of the first symptoms is a slow or sluggish feeling. This symptom is common with many thyroid conditions, though those with hyperthyroid tend to feel a racing heart and nervousness rather than rundown.
Weight Fluctuation
One sign of a problem with the thyroid is a change in weight. A person with a thyroid condition can gain or lose weight rather quickly, depending on the type of thyroid disease.
Change in Gland
A bulging thyroid gland or nodules in the neck could be a sign of a thyroid problem. This could be a tumor or swelling.
Considerations
Left untreated, thyroid conditions can lead to serious problems with muscles and even cognitive thinking and depression. Most thyroid conditions can be diagnosed with a simple blood test.
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