Multiple irritation fibromas after dorsum linguae biopsy.

Irritation fibroma is one of the most frequent occurrences in benign soft tissue growth of the oral cavity. Chronic irritation and trauma are often identified as the causative factors. Recently, we experienced an unusual case of multiple irritation fibromas that occurred in the suture points after dorsum linguae biopsy. To the best of our knowledge, it has not been reported. Hence, the rare case was described and several possible causes were discussed.