A woman growing hair on her chest is an example of which condition?

The condition described, where a woman is experiencing hair growth on her chest, is a classic example of hypertrichosis. This condition refers to an excessive growth of hair on the body, which can occur in both men and women. It is important to note that hypertrichosis can be generalized, affecting large areas of the body, or localized to specific areas. This abnormal hair growth can be a result of various factors, including genetic predisposition, hormonal imbalances, or certain medications.

Hirsutism, while it also refers to excess hair growth, is specifically characterized by male-pattern hair growth in women, typically influenced by elevated androgen levels. Unlike hypertrichosis, hirsutism generally involves hair growth in areas such as the face, chest, and back, and is often related to underlying hormonal issues.

Alopecia is a condition characterized by hair loss rather than excess hair growth. Dermatitis pertains to inflammation of the skin and does not relate to hair growth at all. Hence, hypertrichosis is the most appropriate diagnosis for the presented condition of a woman growing hair on her chest.