Metabolic syndrome and pigmentation: a review of the connecting link.

There is an ongoing interest regarding the association of metabolic syndrome (MetS) and skin diseases. However, the link between MetS and pigmentation has not been extensively explored. In this review, we undertake a detailed discussion on the existing literature on this topic, the various implicated pathomechanisms and/or molecular pathways, and highlight scope for further scientific exploration. A better understanding of the relationship between MetS and disorders of pigmentation contributes to early diagnosis and prevention, as well as providing clues for developing novel therapeutic strategies.