Mucinous nevus is a rare benign entity classified as a cutaneous mucinosis or connective tissue nevus. The principal site is known as trunk and clinically presented as asymptomatic growing grouped papuloplaques with unilateral distribution at birth or early adulthood. The band-like amorphous mucin deposition in the upper dermis is regarded as its own histologic features. A 11-year-old boy presented with asymptomatic multiple papuloplaques on left side of buttocks. Skin biopsy specimens from his lesion of left buttock showed orthokeratosis, acanthosis and slight papillomatosis in epidermis and also amorphous bluish materials in papillary dermis. These materials were proven as mucin by staining of alcian blue. In this case, the patient showed verrucous lesions on left side of buttock near the anus which is known as uncommon sites. We firstly suspect this findings as condyloma accuminatum, but it was ruled out by negative findings of HPV-PCR and band-like deposition of mucin in upper dermis without abnormal findings such as large vacuolated epithelial cells Therefore, we emphasize the importance of skin biopsy including staining of mucin to confirm mucinous nevus near the anus which can be misdiagnosed as condyloma accuminatum. Herein, we report a rare case of mucinous nevus on left buttock area.