Vestibular function tests generally feel good, some tests may cause the subject to feel slight discomfort and cooperation with the doctor is recommended to perform the appropriate movements and maneuvers. Common tests include balance function test of the vestibulospinal reflex system and nystagmus response test of the vestibuloocular reflex arc, as well as examination of the otolith organs and their nerve pathways. As there are more test items, but not all items should be tested, the common tests include the following: I. Balance function test: the items included are simple and quick, without any discomfort, and you can leave after completing the test. 1, closed-eye upright examination method: the patient stands with eyes closed, feet together, observe whether there is tipping; 2, over the finger test: eyes open, eyes closed in two cases, with the finger touching the doctor’s finger; 3, walking test: walking with eyes closed, observe the gait; 4, fistula test: the tympanic otoscope affixed to the external auditory canal alternately adding and subtracting pressure, to observe the eye movement; 5, posture tracing method: can be obtained more objective and accurate balance function The results of the examination. Nystagmus test: 1. General examination: according to different directions of gaze, when the head changes its position or the body position changes, observe whether the eyeballs have irregular rhythmic movements, and the subjects have no adverse reactions; 2. Nystagmus electrooculogram tracing method: by injecting water or air with different temperatures into the external auditory canal, thus inducing vestibular reactions. This program may cause discomfort due to the intermittent injection of water into the ear canal and the varying temperature of the water, and the subject should take a short break before leaving after the examination. Otolith organs and their nerve pathways: One electrode is placed on the sternocleidomastoid muscle to record potentials for assessing the function of the balloon and the inferior vestibular nerve. Another electrode sheet is placed on the contracted extraocular muscle below the eye to record potentials for assessing the elliptic bursa and superior vestibular nerve function. The test requires the patient to lie flat, and the electrode pads may be a little cool to the skin, but there is no current sensation to be felt, and there is no need to be overly concerned.