Glomus tumors are frequently associated with pain, tenderness and cold sensitivity. We report the diagnosis and successful surgical management of a case of a classic glomus tumor in a young woman. The clinical diagnosis was made on the basis of medical history and MRI findings. The lesion was excised via a dorsolateral subungual approach, leading to the complete resolution of symptoms. Histology confirmed the lesion to be a glomus tumor. Glomus tumors are painful subungual lesions. They produce a throbbing or lancinating local discomfort, cold-sensitivity, and severe pain following minor trauma. The diagnosis is confirmed by histology, but the clinical diagnosis is highly suggestive. Complete excision will usually relieve pain. Recurrence is common following incomplete resection.