Beads or nodes form on the hair shaft is called which condition?

Beads or nodes form on the hair shaft is called which condition?

• A. Canities
• B. Nodules
• C. Monilethrix
• D. Hypertrichosis

Answer: (C)

Beads or nodes on the hair shaft describe monilethrix. This hereditary hair shaft disorder causes periodic narrowing between thicker sections, giving a beaded, pearl-like appearance along each strand. The hair is usually fragile and tends to break at the narrow internodes, which is why the beaded pattern is noticeable. It’s different from gray hair (canities) or excessive hair growth (hypertrichosis); the term nodules isn’t the standard description for this pattern. Monilethrix specifically refers to the beaded hair shaft.

Beads or nodes on the hair shaft describe monilethrix. This hereditary hair shaft disorder causes periodic narrowing between thicker sections, giving a beaded, pearl-like appearance along each strand. The hair is usually fragile and tends to break at the narrow internodes, which is why the beaded pattern is noticeable. It’s different from gray hair (canities) or excessive hair growth (hypertrichosis); the term nodules isn’t the standard description for this pattern. Monilethrix specifically refers to the beaded hair shaft.