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What are possible causes of dizziness?

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Quick Answer

Causes of dizziness include infections, Meniere's disease, Dandy's syndrome and benign paroxysmal positional vertigo, according to WebMD. Other causes include side effects of medication, motion sickness and inner ear disturbances, states Mayo Clinic.

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Full Answer

A common cause of dizziness is vertigo, which is a false sense that the surroundings are moving or spinning, according to Mayo Clinic. Benign paroxysmal positional vertigo is triggered when the person suddenly moves his head. Vestibular neuritis, which is an infection of the vestibular nerve, also causes dizziness.

Meniere's disease involves a buildup of fluid in the inner ear, and it is a major cause of dizziness, according to Mayo Clinic. Migraines and severe headaches also cause dizziness. Circulation problems that cause dizziness include a sudden drop in blood pressure and poor blood circulation due to conditions such as cardiomyopathy and transient ischemic attack. Low blood volume may result in inadequate blood flow to the inner ear or brain.

Hypoglycemia, dehydration, anemia and excessive exercise also cause dizziness, reports Healthline. Neurological diseases such as multiple sclerosis and Parkinson's disease lead to loss of balance and may cause dizziness, states Mayo Clinic.

Heat-related illnesses such as heat stroke, heat exhaustion, dehydration and heat cramps may cause dizziness, notes MedicineNet. In some instances, dizziness is a side effect of medications such as beta blockers, tranquilizers and sedatives, as these drugs may lower blood pressure. In rare cases, dizziness may be a symptom of a brain hemorrhage, stroke or tumors, according to Healthline.

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