What Is the Role of Long-Term Use of Finasteride in Baldness?

The document discussed androgenetic alopecia, which affected both men and women, though more commonly in men. It was observed in about 5% of men under 20, nearly 50% of 40-year-old men, and 80% of 70-year-old men. In men, it typically began with a reduction in hair density at the temples and/or a receding frontal hairline or balding at the crown, sometimes resulting in only a ring of hair remaining. In women, hair thinning was more diffuse, primarily at the crown, while the frontal hairline remained intact.