Dizziness is a broad term that can describe light-headedness, feeling off-balance, faintness, or a spinning sensation called vertigo. The cause is often minor, but some causes need medical attention. (National Health Service [NHS], n.d.; MedlinePlus, n.d.)
What causes it or increases the risk?
- dehydration
- a sudden fall in blood pressure when standing
- inner-ear problems
- migraine
- low blood sugar
- iron-deficiency anaemia
- stress or anxiety
- side effects of medicines
- less commonly, heart rhythm problems or stroke
Common signs and symptoms
- light-headedness
- feeling unsteady
- spinning or movement when still
- nausea
- ringing in the ears or hearing changes with some inner-ear causes
How it is diagnosed
Diagnosis depends on the type of dizziness, when it occurs, medicines, blood pressure, ear symptoms and neurological findings. A clinician may check blood pressure lying and standing, blood glucose, blood count, heart rhythm or hearing depending on the pattern.
Treatment and management
- sit or lie down if you feel faint
- rise slowly from bed or a chair
- drink fluids if dehydration is possible and fluid intake is medically safe
- avoid driving or using dangerous machinery while dizzy
- treatment is directed at the underlying cause
Treatment choices depend on the person, severity, pregnancy status, other medical conditions, local resistance patterns where infection is involved, and current national guidance. Readers should not start, stop or share prescription medicines based only on an online article.
Possible complications
- falls
- injury
- dehydration
- missed serious neurological or heart disease if warning signs are ignored
Prevention and practical steps
- stay well hydrated
- stand up gradually
- review medicines with a clinician if dizziness began after a new medicine
When to seek urgent medical help
- new facial weakness, arm weakness or speech difficulty
- fainting with chest pain or palpitations
- severe headache or new double vision
- inability to walk normally
- persistent vomiting or severe dehydration
Key takeaway
Dizziness should be understood using the full pattern of symptoms, risk factors and appropriate testing. Early assessment is especially important when symptoms are severe, persistent, unusual or accompanied by the warning signs listed above. Reliable diagnosis and treatment come from qualified health professionals and current clinical guidance.
Medical Disclaimer
This article is for general informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis or treatment. Symptoms can have many causes, and treatment that is appropriate for one person may be unsafe for another. Always seek advice from a qualified healthcare professional about symptoms, medicines, tests, pregnancy, chronic disease or treatment decisions. Seek urgent or emergency care for severe or rapidly worsening symptoms.
References
National Health Service. (n.d.). Dizziness. https://www.nhs.uk/symptoms/dizziness/
MedlinePlus. (n.d.). Dizziness and Vertigo. https://medlineplus.gov/dizzinessandvertigo.html
