Abstract: This invention provides a tongue press that can be switchably adapted to both external and internal tongue press holder. The tongue press can be embodied in various types such as the type covering the whole surface area of the tongue and the type covering one half or one side of the tongue and is also featured by a reticulate structure so as to alleviate the malaise of the patient applied with the device while eliminating slip of the tongue due to saliva, etc., in use of the device. The invention allows the selective use of any desired type of tongue press according to the patient and the purpose of use. Owing to the flexiblity provided by the reticulate structure, a single tongue press according to this invention can be used for many patients differing in size and shape of the tongue. Also, the production cost of the tongue press can be reduced.