Hirsutism is a condition characterized by excessive hair growth in areas where hair is normally absent or minimal, such as the face, chest, and back. It is often due to hormonal imbalances, such as an excess of male hormones (androgens), and can be a symptom of conditions like polycystic ovary syndrome (PCOS). Treatment may involve hormonal therapy, medications to slow hair growth, or procedures like electrolysis or laser hair removal.