Clinically, many kinds of diseases can present with sudden vertigo, and the specific causes need to be identified according to the type of vertigo, its duration and whether it is accompanied by other symptoms. Now we will give you some common examples: 1. Meniere’s disease: It is mainly caused by lymphatic metabolism disorder in the inner ear, excessive lymphatic secretion or absorption disorder, resulting in fluid accumulation in the vagus of the inner ear membrane, which usually manifests as episodic vertigo with tinnitus, hearing loss, nystagmus, etc. 2. Hypertension: It is mainly caused by mental tension, emotional excitement and abuse of antihypertensive drugs. 3.Vestibular neuronitis: It is mainly caused by inflammatory lesions of vestibular neuronitis, which often appears suddenly after fever or infection, accompanied by nausea and vomiting, and lasts for a long time, up to about 6 weeks. 4, motion sickness: mainly due to vestibular dysfunction caused by car, boat or airplane ride, accompanied by nausea and vomiting. 5. Screen vertigo: vertigo caused by watching computer, cell phone or TV for too long. 6.Intracranial vascular diseases: such as cerebral hemorrhage, cerebral infarction, etc. Patients will have vertigo, which lasts for a long time, accompanied by nausea, vomiting, accelerated heart rate, numbness of limbs and other symptoms. Besides, hypotension, blood disorders, heart disease, epilepsy, etc. can cause sudden vertigo. Therefore, patients with vertigo can take oral sedatives such as diazepam and promethazine to improve vertigo symptoms. (The specific medication is subject to the doctor’s consultation.) In addition, it is necessary to consult the local hospital as soon as possible to improve the relevant examination to find the cause of vertigo attacks for further treatment.