There are many disadvantages of dizziness, mainly including easy to lead to fall and other accidents, affecting work, study and so on. 1. Easily lead to fall and other accidents: severe dizziness is prone to fall, and then there is a risk of fall injuries, such as traumatic brain injury, bone fracture, etc., which is hazardous to the safety of the body. 2. Impact on daily work and study: frequent occurrence of dizziness, first of all, will cause uncomfortable feeling, and then make it impossible to concentrate on daily work and study, and in serious cases, it will affect the sleep, and appear inattentive, depressed and other effects. In addition, dizziness is also a signal of many diseases, such as stroke, hypertension, vestibular disorders and so on. Therefore, when dizziness occurs, you should go to the hospital in time to clarify the cause of the disease and take treatment under the guidance of the doctor.