Which Department

Which department should I see for feeling dizzy and weak?

2026-09-17 · Neutral information that names no hospital, doctor or region. No rankings, recommendations or reviews.

Short answer

Internal Medicine(내과) is generally the first department to visit when you experience dizziness combined with general weakness, as these symptoms can stem from a wide range of systemic causes such as anemia, thyroid issues, or cardiovascular conditions. Depending on what is found during the initial evaluation, you may be referred to Neurology(신경과) if the dizziness appears brain- or nerve-related, or to ENT(이비인후과) if an inner-ear origin is suspected.

Which department

  1. 1Internal Medicine (내과)
    Internal Medicine serves as the broadest entry point for dizziness and weakness because these symptoms are commonly linked to systemic conditions — such as low blood pressure, blood sugar imbalance, anemia, thyroid dysfunction, or dehydration — that fall within this specialty's scope. A general internist can order a broad panel of evaluations and coordinate referrals if a more specific cause is identified. — First / second line: Starting at a local clinic-level internal medicine practice (의원) is generally appropriate for mild to moderate, non-sudden symptoms. If your symptoms are severe, have been ongoing for a long time, or initial findings suggest a specialist is needed, a referral to a hospital-level department is the typical next step.
  2. 2Neurology (신경과)
    Neurology focuses on dizziness and weakness when there is suspicion of a central nervous system cause, such as issues originating in the brain, brainstem, or cerebellum. Neurologists evaluate conditions like vestibular neuritis of central origin, stroke-related symptoms, or peripheral nerve problems that can produce both dizziness and limb weakness simultaneously. — First / second line: You would typically be referred here from Internal Medicine if neurological causes are suspected, rather than visiting first. However, if weakness is clearly one-sided, accompanied by sudden speech difficulty, or follows a head injury, going directly to a hospital-level Neurology department — or the emergency room — is generally more appropriate.
  3. 3ENT / Otolaryngology (이비인후과)
    ENT specialists address dizziness that originates from the inner ear, such as benign positional vertigo, Meniere's disease, or labyrinthitis, where spinning sensations are often position-dependent and hearing changes may accompany the dizziness. If weakness is mild and the dizziness is the dominant complaint with ear-related features, ENT may be considered alongside Internal Medicine. — First / second line: A clinic-level ENT practice is reasonable to visit first when the dizziness is clearly spinning in nature, triggered by head position changes, and associated with ear symptoms like ringing or muffled hearing. Internal Medicine is still commonly chosen first when weakness is equally prominent, since ENT does not typically address systemic fatigue.
  4. 4Cardiology (심장내과)
    Cardiology becomes relevant when dizziness and weakness are thought to be related to heart rhythm problems, low cardiac output, or significant blood pressure irregularities, especially if symptoms occur during exertion or when standing up. These symptoms may be encountered within Internal Medicine first, after which a referral to Cardiology is made if a cardiac cause is suspected. — First / second line: Direct visits to Cardiology at the clinic level are less common without a prior referral in the Korean healthcare system. Generally, Internal Medicine evaluates first and issues a referral (진료의뢰서) to Cardiology at a larger hospital if cardiac involvement seems likely.

Go to the ER / call 119 if

If any of the following applies, do not choose a department — go to an emergency room or call 119 (Korea's emergency number).

  • Sudden, severe dizziness accompanied by one-sided facial drooping, arm or leg weakness, or slurred speech — go to the emergency room or call 119 immediately.
  • Loss of consciousness or fainting, even briefly, especially if accompanied by chest pain or palpitations.
  • Weakness that comes on suddenly and affects one entire side of the body.
  • Dizziness or weakness following a head injury, fall, or trauma.
  • Extremely rapid or irregular heartbeat felt together with near-fainting and severe weakness.

Before your visit

  • Note when the dizziness and weakness first started and whether they came on suddenly or gradually.
  • Track whether symptoms are constant or come and go, and what seems to trigger or worsen them (e.g., standing up, turning your head, eating, exertion).
  • Make a list of all medications and supplements you are currently taking, including doses if possible.
  • Record any accompanying symptoms such as ringing in the ears, nausea, vomiting, blurred vision, palpitations, or shortness of breath.
  • Bring any previous test results, blood work, or medical records from your home country or prior visits in Korea.
  • Note whether you have any known conditions such as diabetes, hypertension, thyroid disease, or anemia, as these are directly relevant to the evaluation.

General principles

Dizziness and weakness together are considered non-specific symptoms, meaning they can arise from many different organ systems — the blood, heart, inner ear, nervous system, or endocrine glands — which is why Internal Medicine is generally the recommended starting point. A broad initial assessment allows the clinician to narrow down the most likely system involved before deciding on further evaluation or specialist referral.

In the Korean healthcare system, the general flow is to begin at a local clinic (의원) for a first assessment, and if the findings indicate a need for more specialized care or advanced testing, the clinic may refer you to a secondary or tertiary hospital. Secondary hospitals (병원/종합병원) can be visited directly with normal national health insurance (건강보험) coverage and no referral is needed, while a referral letter (요양급여의뢰서) is required for insurance coverage at tertiary hospitals (상급종합병원) such as university hospitals.

The evaluation process for these symptoms typically involves gathering a detailed history about the nature, timing, and triggers of dizziness and weakness, followed by a physical examination. Further workup — the type and extent of which a doctor determines based on clinical findings — may explore blood-related, cardiovascular, or neurological factors, and the results guide which specialist, if any, becomes involved in continued care.

FAQ

Should I go to a local clinic (의원) or a larger hospital first for dizziness and weakness?

Generally, starting at a local clinic-level Internal Medicine practice is appropriate when symptoms are mild to moderate and developed gradually. A larger hospital is more appropriate if symptoms are severe, sudden in onset, or accompanied by alarming signs — and in those cases, going directly to the emergency department may be safer than waiting for a clinic appointment.

How do I know whether my dizziness is an ear problem or a brain problem?

Distinguishing between inner-ear and brain-related dizziness is something a clinician does through physical examination and, when needed, further evaluation — it is not reliably determined by symptoms alone. As a general principle, spinning dizziness triggered by head position changes often points toward the inner ear, while dizziness combined with neurological symptoms like weakness or vision changes raises more concern for a central cause. A doctor's assessment is essential to tell them apart.

Are there differences in how dizziness and weakness are evaluated in older adults versus younger people?

In older adults, these symptoms carry a wider differential because the risk of cardiovascular causes, medication side effects, and neurological conditions is generally higher, and clinicians typically approach the evaluation with this in mind. Younger individuals more often have causes such as anemia, low blood pressure upon standing, or inner-ear conditions, though age alone does not determine the cause. Regardless of age, a medical evaluation is the appropriate step rather than assuming a benign cause.

Could chronic fatigue alone explain my dizziness, or do I need to see a doctor?

Persistent fatigue can contribute to a feeling of lightheadedness in some cases, but dizziness combined with weakness is generally considered a reason to seek a medical evaluation rather than attribute it solely to tiredness. There are several underlying conditions — some of which are easily addressed once identified — that can present this way, and a clinician can help determine whether further assessment is needed. Self-managing without evaluation is generally not advised when both symptoms are present and recurring.

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This page is general medical information and does not replace diagnosis, treatment or choosing a clinic. Consult a doctor for any symptom. In an emergency, go to the ER or call 119 immediately.