Dizziness is a common complaint with multiple underlying mechanisms. This page outlines what dizziness can mean, typical causes, which medical specialties are usually involved, and warning signs that warrant urgent assessment. This information is for general guidance only and does not replace a medical evaluation.
Dizziness describes a range of sensations such as a spinning feeling (vertigo), a faint or lightheaded sensation (presyncope), or a sense of unsteadiness or imbalance. Clinicians classify these types because they point to different causes and guide further testing and examination.
Many conditions can cause dizziness. Inner ear (vestibular) disorders, neurological conditions, cardiovascular problems that affect blood flow, metabolic changes such as low blood sugar, and side effects of medications are frequent causes. Associated symptoms—hearing loss, ringing in the ears, double vision, weakness, severe headache, chest pain or fainting—help clinicians narrow the cause and decide on tests.
Initial assessment is often done by a primary care clinician or in emergency triage. ENT (otolaryngology) and neurology teams assess vestibular and neurological causes; cardiology evaluates possible heart-related causes; internal medicine or endocrinology may investigate metabolic contributors. Care is coordinated based on findings from the first evaluation.
Seek immediate medical attention if dizziness starts suddenly and worsens quickly, or if it occurs with speech changes, weakness or numbness in an arm or leg, severe headache, fainting, chest pain or breathing difficulty. These signs can indicate a serious condition and require prompt evaluation by emergency services.
During an episode, prioritize safety: sit or lie down, avoid driving or operating machinery, and ask for help if needed. When you see a clinician, they may take a medication and symptom history, check balance and hearing, perform a cardiac and neurological exam, and order tests such as ECG, blood tests or imaging if indicated.
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