What common symptom is associated with hypothyroidism?

Hypothyroidism is a condition characterized by an underactive thyroid gland, which results in a decrease in thyroid hormone production. One of the most common symptoms associated with this condition is fatigue. Patients often experience persistent tiredness despite adequate sleep, due to the overall slowdown of metabolism caused by insufficient thyroid hormones. This fatigue can significantly impact daily functioning and quality of life.

The other symptoms commonly seen in hypothyroidism include weight gain, depression, and sensitivity to cold, which are all indicative of a slowed metabolic rate. In contrast, increased appetite, weight loss, and excessive sweating align more closely with hyperthyroidism, where the thyroid gland is overactive, leading to increased metabolism and energy expenditure.