Trigger finger in children is a rare condition. Thirty-three patients with 45 trigger fingers (40 thumbs and five other fingers) were reviewed. As no case was detected at birth, the condition was suggested to be developmental. Surgical release was performed in 31 cases, with satisfactory results in all cases. Ten of 31 cases were older than 3 years (range, 3-5 years). The age of the patient when the operation was indicated could be between 1 and 5 years.