Occlusive eccrine hidradenitis presented as a reticulated eruption on the buttocks.

A 13-month-old girl presented a reticulated eruption of 2 months duration located on her buttocks. Histologically, a mononuclear cell inflammatory infiltration was found within and around the eccrine sweat glands, with epithelial cell damage. The lesions were related to several traumatic mechanisms involving the buttocks, such as crawling and repeated trauma with a bathmat carpet.