A person who does a significant amount of rowing may develop skin changes over the buttocks.

Risk factors:

(1) hard, unpadded metal rowing seat

(2) significant amount of rowing


Main differential diagnosis of rower's rump:

(1) lichen simplex chronicus (scaling pruritic plaques with lichenification)

(2) hyperkeratosis and/or callus related to recurrent abrasion

(3) tinea

(4) chronic ecchymoses in the gluteal cleft


Less common conditions:

(5) contact dermatitis

(6) psoriasis


Lichen simplex chronicus can be diagnosed with dermatoscopy while tinea can be diagnosed based on skin scrapings, culture or response to antifungals.

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