Monilethrix: A Rare Hereditary Condition

Monilethrix is a rare hereditary hair shaft disorder, typically autosomal-dominant, characterized by beaded hair shafts. A case involving a 13-year-old boy and his sibling was treated with oral N-acetylcysteine, showing slight initial improvement but no sustained increase in hair density. The condition remains a therapeutic challenge, with no definitive treatment established. Further studies are needed to evaluate the efficacy of N-acetylcysteine for monilethrix.