What integumentary finding may indicate hypothyroidism?

Coarse hair is a significant integumentary finding that may indicate hypothyroidism. In hypothyroidism, there is a decrease in thyroid hormone production, which can affect skin and hair health. The hair follicles may produce hair that is dry, brittle, and coarse, reflecting the altered metabolic state and reduced cellular activity associated with low thyroid hormone levels.

This condition can also lead to changes in the texture and appearance of hair, resulting in coarseness rather than the silky or smooth texture typically seen in individuals with normal thyroid function. Other characteristics of hair and skin in hypothyroidism include dryness and a lack of luster, which can further support the diagnosis.

In contrast, thin hair is often associated with other conditions, such as hyperthyroidism. Hyperpigmentation and hirsutism are more commonly related to other hormonal imbalances or conditions, rather than specifically pointing to hypothyroidism.