Fibro-osseous pseudotumor (FP) of the digit is a rare,non-neoplastic heterotopic ossifying lesion involving the subcutaneous tissues of the digits. It commonly affects young adults from 20- to 30-years-old, with women predominance. 40 to 50% of the cases are associated with trauma before development of lesion, which many patients do not notice. We present a case of FP on the left subungal area of 25- year-old man. Diagnosis was confirmed by histopathologic feature, followed by excision of the lesion. At the 1-year follow-up, this patient came to hospital with local recurrence in same loacation. And complete excision was done with clear margin. After 6-month follow-up, there is no recurrence at present. We suggest that FP should be considered in the differential diagnosis of any digital mass. And it is important that it needs complete excision to avoid local recurrence.