Occasional vertigo is a symptom that occurs in many people in life and may be related to many factors, mainly the following: 1. Hypertension/low blood pressure: Patients with hypertension will experience occasional vertigo if they do not take antihypertensive drugs regularly and their blood pressure is not well controlled, and some patients also have dizziness and headache. Patients may also experience occasional vertigo if they take too much antihypertensive medication and exert too much pressure and experience hypotension. 2.Low blood sugar: Some female patients have irregular diet in order to lose weight, which causes low blood sugar and also causes symptoms of vertigo. 3.Ménière’s disease: It causes peripheral vertigo, which is episodic and transient, and some patients also have symptoms of nystagmus, hearing loss, and in severe cases, nausea and vomiting. 4. Otolithiasis: It is caused by the otolith in the semicircular canal stimulating the semicircular canal hair cells. Patients will have transient vertigo symptoms caused by the change of body position, and the attack time is less than 1 minute. 5. Screen vertigo: Staring at an electronic screen for too long will also cause vertigo symptoms. In addition, there are many other causes of vertigo, such as cerebral hemorrhage, cerebral infarction, heart disease, etc. If patients have occasional vertigo, they need to identify what causes it, and can take the following sedative drugs to improve the symptoms, at the same time, it is recommended that patients actively seek medical advice to avoid delaying the disease.