Hitting the buttocks with a paddle can be dangerous, depending on the force and duration of the blow. Usually, when hitting the buttocks with the board, the strength is relatively mild and the duration is short, it is generally not dangerous, but there will be redness, swelling, pain and other symptoms. For the board hit the buttocks with greater strength, shorter duration of the case, may cause local soft tissue damage, generally there is no serious danger, most patients in the rest and treatment, can be healed. If hitting the buttocks with a board is very strong and lasts for a relatively long period of time, it may be dangerous and may cause fractures, etc. In serious cases, it may also injure internal organs, etc., and may even jeopardize life. In summary, hitting the buttocks with a board is exceptionally dangerous, and unauthorized use of a board for prolonged and heavy blows to the buttocks of others should be avoided.