Hamilton–Norwood scale

The Hamilton–Norwood scale is used to classify the stages of male pattern baldness. The stages are described with a number from 1 to 7.[1]

Part of the Hamilton-Norwood classification system.

This measurement scale was first introduced by James Hamilton in the 1950s and later revised and updated by O'Tar Norwood in the 1970s.[2] It is sometimes referred to as the Norwood–Hamilton scale or simply the Norwood scale.

The scale is regularly used by doctors to assess the severity of baldness, but it is not considered very reliable since examiners' conclusions can vary.[1]

See also

References
  1. Guarrera M, Cardo P, Arrigo P, Rebora A (2009). "Reliability of hamilton-norwood classification". Int J Trichology. 1 (2): 120–2. doi:10.4103/0974-7753.58554. PMC 2938573. PMID 20927233.
  2. Gupta, M; Mysore, V (2016). "Classifications of Patterned Hair Loss: A Review". Journal of Cutaneous and Aesthetic Surgery. 9 (1): 3–12. doi:10.4103/0974-2077.178536. PMC 4812885. PMID 27081243.


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