A case of urticaria pigmentosa with bullous lesions in a 2-year-old mile is presented. No systemic manifestation of mastocytosis was found.

A 2-year- old child with multiple brownish papules over trunk and limbs for one year having history of occasional blister formation is described. Histopathology revealed perivascular mast cell infiltration. Symptomatic treatment with topical corticosteroids and oral antihistaminics was effective.