What is one of the common manifestations of vitamin A deficiency?

One common manifestation of vitamin A deficiency is follicular hyperkeratosis. This condition is characterized by the abnormal thickening of the skin, particularly around hair follicles, where keratin accumulates. Vitamin A plays a crucial role in maintaining the health of epithelial tissues, including skin. When there is a deficiency, the skin can become rough and bumpy due to disrupted keratinization processes.

In vitamin A deficiency, the lack of this essential nutrient impairs the normal growth and turnover of skin cells. The condition often results in a dry, scaly appearance and can affect not only the skin but also mucous membranes, leading to further complications. Recognizing follicular hyperkeratosis as a manifestation can aid in diagnosing vitamin A deficiency, emphasizing its importance in the body’s overall health.