General Internal Medicine Clinic Ningyocho provides comprehensive care across a wide range of adult conditions — from hypertension, diabetes, and dyslipidemia to gout, sleep apnea syndrome, anemia, thyroid disease, and bronchitis.
The clinic also screens for endocrine disorders that often go unrecognised in routine check-ups, including primary aldosteronism and Cushing’s syndrome. If standard treatment hasn’t been producing results, a deeper look may reveal exactly the cause that’s been missing.
Whether you are managing a known condition or searching for answers to unexplained symptoms, this clinic in central Tokyo approaches every consultation with thoroughness, patience, and clarity.
03-5843-6714
Why the Right Internal Medicine Clinic in Tokyo Makes All the Difference
Internal medicine is often where the important health conversations begin. At General Internal Medicine Clinic Ningyocho, the focus extends well beyond the immediate presenting symptom — the team looks for underlying causes, tracks how conditions interact, and builds a picture of your health over time.
Routine check-ups versus conditions that need a closer look
Fatigue, mild dizziness, a persistent cough, or unexplained changes in weight can feel easy to dismiss. Yet these are often early markers of conditions like anemia, thyroid dysfunction, or sleep apnea — each of which responds well to early intervention and poorly to prolonged neglect.
At Ningyo-cho, diagnostic tests are chosen thoughtfully, and results are always reviewed in the full context of your health history. Details that might be overlooked in a shorter consultation frequently turn out to be the key to a clear diagnosis.
A clinic where your full medical history is taken into account
Consultations here are not conducted under time pressure. The physician takes care to understand your current symptoms, your lifestyle, any medications you’re taking, and your family health history before drawing conclusions. This joined-up approach matters most for conditions that can closely resemble something else entirely.
Patients who have received incomplete or conflicting diagnoses elsewhere often find that a structured, unhurried evaluation at Ningyo-cho provides the clarity they had been searching for.
Conditions Covered at General Internal Medicine Clinic Ningyocho
| Category | Condition | Approach |
|---|---|---|
| Lifestyle diseases | Hypertension, diabetes, dyslipidemia | Monitoring and personalised management |
| Metabolic disorders | Gout (hyperuricemia) | Uric acid testing and treatment support |
| Sleep disorders | Sleep apnea syndrome (SAS) | Clinical screening and next-step guidance |
| Blood conditions | Anemia | Full blood count and cause identification |
| Endocrine disorders | Thyroid, primary aldosteronism, Cushing’s | Hormone testing; referral where needed |
| Respiratory | Bronchitis | Acute and chronic assessment and treatment |
Convenient access for residents and workers throughout central Tokyo
The clinic’s Ningyo-cho location is well served by multiple subway lines, making it straightforward to reach from most parts of the city. Appointments are designed to respect your time, with minimal waiting once you arrive.
High Blood Pressure, Diabetes, and Cholesterol — Three Conditions That Build in Silence
Hypertension, diabetes, and dyslipidemia are the most prevalent chronic conditions managed at internal medicine clinics across Japan. All three can develop with no noticeable symptoms for years — and by the time something feels wrong, damage may already have accumulated. At Ningyo-cho, these conditions are monitored with precision and treated with a long-term plan in mind.
Hypertension — when “slightly elevated” readings deserve real follow-up
Blood pressure consistently above 130/80 mmHg is classified as hypertension. A great many people receive that piece of information and continue without any follow-up. Over years, unmanaged blood pressure quietly damages arteries, elevates the risk of stroke and heart disease, and can impair kidney function in ways that are difficult to reverse.
The approach at Ningyo-cho combines regular monitoring with practical guidance on diet and physical activity. Where medication is indicated, the dosage and type are chosen with your full clinical picture in mind — the goal is to reduce long-term cardiovascular risk, not simply to move a number.
Diabetes and pre-diabetes — the window that changes outcomes
Type 2 diabetes develops gradually, often passing through a pre-diabetic stage when blood glucose is elevated but has not yet reached diagnostic levels. An HbA1c blood test — which reflects average blood sugar across the previous three months — can identify this stage reliably.
Catching pre-diabetes is one of the most clinically valuable things a routine check-up can do. Lifestyle adjustments made during this period can prevent or substantially delay the progression to full diabetes. The clinic provides clear, practical guidance to support exactly that effort.
Dyslipidemia — understanding what your cholesterol panel actually means
Dyslipidemia refers to abnormal levels of lipids in the blood: elevated LDL (“bad”) cholesterol, reduced HDL (“good”) cholesterol, or high triglycerides. None of these typically produce direct symptoms, yet all contribute to the gradual narrowing of arteries over time.
Treatment decisions at Ningyo-cho are based on your lipid panel results combined with your overall cardiovascular risk profile. For some, dietary changes and increased physical activity are sufficient. For others, medication becomes a structured part of the plan.
Key Blood Tests for Lifestyle Disease Monitoring
| Test | What It Measures | General Target |
|---|---|---|
| Blood pressure | Arterial pressure | Below 130/80 mmHg |
| HbA1c | 3-month blood glucose average | Below 5.7% (normal) |
| LDL cholesterol | “Bad” cholesterol | Below 120 mg/dL (general) |
| HDL cholesterol | “Good” cholesterol | 40 mg/dL or above |
| Triglycerides | Blood fat concentration | Below 150 mg/dL |
Gout, Sleep Apnea, and Anemia — Three Conditions People Dismiss for Too Long
These three conditions share a tendency to be minimised: gout is written off as a random joint injury, sleep apnea as ordinary snoring, and anemia as the unavoidable consequence of a busy life. At General Internal Medicine Clinic Ningyocho, each receives the structured evaluation it warrants — because the earlier the diagnosis, the simpler the treatment.
Gout (hyperuricemia) — that sudden, excruciating joint pain has a precise cause
Gout occurs when uric acid accumulates in the blood at elevated levels — a condition called hyperuricemia (高尿酸血症) — and crystallises in the joints. The most common site is the base of the big toe, though the ankle, knee, and wrist are also frequently affected. The onset is typically abrupt and intensely painful.
Uric acid can be measured with a standard blood test. If levels are high, treatment can begin before a full gout attack ever develops. Managing hyperuricemia involves reviewing dietary habits (particularly purine-rich foods and alcohol) and, where needed, prescribing medication to bring levels within a safe range.
Sleep apnea syndrome (SAS) — disrupted breathing at night has real daytime consequences
Sleep apnea syndrome (SAS) involves repeated pauses in breathing during sleep, most commonly caused by the throat muscles relaxing and partially blocking the airway. Loud snoring, morning headaches, difficulty concentrating, and persistent daytime fatigue are the most recognisable signs. Many people with SAS are unaware they have it — a partner noticing gasping or pauses during sleep is often the first alert.
Beyond its effect on daily energy and focus, untreated SAS is linked to elevated blood pressure, metabolic changes, and cardiovascular risk. A clinical assessment at Ningyo-cho is the appropriate first step when any of these patterns sounds familiar.
Symptoms and Screening Tests — Gout, SAS, and Anemia
| Condition | Typical Symptoms | First Diagnostic Step |
|---|---|---|
| Gout (hyperuricemia) | Sudden joint pain, swelling, heat, redness | Serum uric acid blood test |
| Sleep apnea (SAS) | Snoring, fatigue, morning headache, poor concentration | Clinical assessment; home sleep study if indicated |
| Anemia | Fatigue, pallor, breathlessness, dizziness | Full blood count (CBC), iron studies, B12 |
Anemia — persistent tiredness is not something to simply push through
Anemia occurs when the body has too few red blood cells, or insufficient hemoglobin within them, to deliver oxygen effectively to the tissues. Iron-deficiency anemia is the most common form, but anemia can also arise from vitamin B12 deficiency, chronic inflammation, thyroid dysfunction, or other underlying causes that require different treatment approaches.
A full blood count (CBC) combined with iron studies and relevant vitamin levels allows the clinic to identify which type of anemia is present — and why. Treating the underlying cause, rather than the symptom alone, is what produces a lasting improvement in energy and wellbeing.
Thyroid Disease and Bronchitis — When the Real Diagnosis Has Stayed Just Out of Reach
Thyroid disorders and bronchitis are distinct conditions, but both share a frustrating characteristic: people often live with the symptoms for longer than necessary, unsure whether they are serious enough to warrant a formal evaluation. At General Internal Medicine Clinic Ningyocho, both are assessed with a thoroughness that leads to clear answers and earlier treatment.
Thyroid disease — one small gland, an outsized effect on how your body functions
The thyroid gland, located at the base of the neck, regulates metabolism, body temperature, heart rate, and mood. Hypothyroidism — an underactive thyroid — produces a gradual cluster of symptoms including fatigue, weight gain, sensitivity to cold, dry skin, and low mood. Hyperthyroidism — an overactive thyroid — drives the opposite pattern: weight loss despite normal eating, palpitations, anxiety, and heat intolerance.
Thyroid function is assessed through blood tests measuring TSH, free T4, and free T3 — reliable markers that can confirm whether the gland is performing within a normal range. Where results are abnormal, the clinic discusses treatment options clearly: medication, active monitoring, or referral to an endocrinologist, depending on the finding.
Bronchitis — a cough that outstays its welcome deserves proper evaluation
Bronchitis refers to inflammation of the bronchial tubes, the airways that carry air to and from the lungs. Acute bronchitis typically follows a respiratory infection and produces a productive cough that can persist for several weeks beyond the initial illness. Chronic bronchitis — a persistent cough with mucus on most days over extended periods — is a more serious pattern that often reflects long-term airway irritation.
A cough lasting more than three weeks, particularly with mucus, chest tightness, or a lingering low-grade fever, is worth investigating properly. The clinic can determine whether bronchitis is the primary diagnosis, whether a secondary bacterial infection has developed, or whether the picture warrants further respiratory investigation.
Reaching a clear diagnosis without the runaround
One of the practical advantages of a well-equipped internal medicine clinic is that many conditions can be evaluated and treated within a single clinical setting. At Ningyo-cho, patients are not passed between departments or advised to wait and see — the aim is to identify what is happening and move toward a clear, actionable plan in as few steps as possible.
Signs That May Point to Thyroid Dysfunction
- Persistent fatigue that doesn’t improve with adequate rest
- Unexplained changes in body weight — either gain or loss
- Unusual sensitivity to cold or heat compared to others around you
- Heart palpitations, a racing pulse, or irregular heartbeat
- Ongoing low mood, heightened anxiety, or difficulty concentrating
Primary Aldosteronism and Cushing’s Syndrome — Endocrine Disorders That Hide Behind Everyday Symptoms
Among the conditions that internal medicine clinicians are trained to identify, primary aldosteronism and Cushing’s syndrome stand apart for how often they are attributed to something else entirely. Both are more common than was once thought, and both tend to be diagnosed late — not because they are difficult to treat, but because specific testing is rarely performed until a clinician thinks to look. At Ningyo-cho, this possibility is kept in mind whenever the clinical picture doesn’t quite add up.
Primary aldosteronism — when blood pressure refuses to respond to treatment
Primary aldosteronism (原発性アルドステロン症) occurs when one or both adrenal glands produce excess aldosterone — the hormone responsible for regulating sodium and fluid balance in the body. The consequence is high blood pressure that frequently proves resistant to standard medication, alongside low potassium levels that can cause muscle weakness, cramping, and fatigue.
Evidence suggests that primary aldosteronism may account for a meaningful proportion of treatment-resistant hypertension cases, yet it remains underdiagnosed because routine blood pressure workups rarely include the aldosterone-renin ratio (ARR) test that screens for it. At Ningyo-cho, this test is considered whenever blood pressure management is not responding as expected.
Cushing’s syndrome — a cortisol excess that affects the whole body at once
Cushing’s syndrome (クッシング症候群) results from prolonged exposure to elevated cortisol levels, most commonly caused by a cortisol-producing tumour in the adrenal gland or a problem with the pituitary gland. Physical signs include abdominal weight gain with thinner limbs, a characteristically rounded face, easy bruising, stretch marks, and blood pressure that is difficult to control despite treatment.
Because these features overlap substantially with metabolic syndrome and other common conditions, Cushing’s syndrome is often not the diagnosis considered first. When the clinical pattern is suggestive, targeted hormone tests — including a 24-hour urinary cortisol measurement and a dexamethasone suppression test — can confirm or rule out the diagnosis with clarity.
Primary Aldosteronism vs Cushing’s Syndrome — Key Differences
| Feature | Primary Aldosteronism | Cushing’s Syndrome |
|---|---|---|
| Hormone involved | Aldosterone (adrenal glands) | Cortisol (adrenal / pituitary) |
| Core presentation | Resistant hypertension; low potassium | Weight gain, moon face, high blood pressure |
| Screening test | Aldosterone-renin ratio (ARR) | 24-hr urinary cortisol; dexamethasone suppression |
| Why it’s missed | Looks like ordinary hypertension | Overlaps with metabolic syndrome presentation |
When standard treatment falls short, a deeper evaluation is the logical next step
These two conditions illustrate why internal medicine requires more than following a standard protocol. When blood pressure won’t respond to medication, when symptoms connect in unusual ways, or when something about the clinical picture feels slightly off — these are the moments when a thorough, enquiring approach proves its value.
General Internal Medicine Clinic Ningyocho brings that mindset to every consultation where the situation calls for it. The aim is always to find the actual cause, not simply to manage what is immediately visible.
Your First Visit to Ningyo-cho — What to Prepare, and What to Expect
Knowing what to expect before a first clinic visit removes a significant source of anxiety. At General Internal Medicine Clinic Ningyocho, the process is straightforward, and the team is experienced at guiding new patients through it clearly.
What to bring and how registration works
For your first visit, bring your Japanese health insurance card (健康保険証) if you have one, along with any previous test results or medical records. A written list of current medications — including supplements — is also helpful. If you have symptoms you want to address, noting them down beforehand means nothing important is forgotten during the consultation itself.
Arriving a few minutes early allows time to complete the new patient registration form at reception without any rush. The front desk team will walk you through the process.
Communication during the consultation — clarity over assumptions
Medical appointments can feel uncertain when you’re not fully confident in the local language. The clinic takes care to explain diagnoses, test results, and treatment options in plain, accessible terms. Questions are not just welcomed — they are actively encouraged at every stage.
Bringing written notes about your symptoms, or a brief translation of key medical terms you’ve looked up in advance, can help make the conversation more productive for both sides.
Follow-up visits and building a long-term health routine
For chronic conditions like hypertension, diabetes, or thyroid dysfunction, health management is an ongoing commitment rather than a single event. Regular follow-up appointments allow the clinic to track how treatment is working, adjust the approach as your situation changes, and address any new concerns that arise.
Building a consistent relationship with an internal medicine physician over time is one of the most reliable ways to stay on top of your health — particularly for conditions that evolve slowly and benefit from early course correction.
Checklist for Your First Visit
- Japanese health insurance card (健康保険証), if you hold one
- Previous medical records or test results, if available
- A written list of all current medications and their dosages
- Notes on your symptoms — when they started, how they’ve changed, and any pattern you’ve noticed
- Specific questions or concerns you want to address during the consultation
How to Get Here / Access & Directions
Look for the whale monument — a symbol of Ningyocho — built by the building’s owner.
1F Unicom Ningyocho Building, 1-6-10 Nihonbashi Ningyocho, Chuo-ku, Tokyo
TEL 03-5843-6714
- 2-minute walk from Ningyocho Station (Hibiya Line), Exit A2
- 3-minute walk from Ningyocho Station (Toei Asakusa Line), Exit A6
- 3-minute walk from Suitengumae Station (Hanzomon Line), Exit 8
- 21-minute walk from Tokyo Station (Yaesu North Exit)
- No parking available
From Hibiya Line Ningyocho Station — 2-minute walk from Exit A2
When you exit the ticket gates at Ningyocho Station, please use Exit A2 to reach street level.
After climbing the stairs, make a U-turn and proceed in the direction of the arrow.
※You can reach our clinic in about 3 minutes without any turns.
You will see a FamilyMart on your left, on the other side of the road. Please continue straight ahead.
You will see a pharmacy on your right. Our clinic is just past the pharmacy — look up and you should see the blue sign of the orthopedic clinic above.
As indicated by the arrows in the image below, we have separate entrances for general patients (blue arrows) and patients with fever (red arrows).
If you have a fever, please press the doorbell located at the entrance designated for patients with fever and wait. A staff member will come to meet you and guide you directly to the examination room without passing through the waiting area.
From Toei Asakusa Line, Ningyocho Station — 3-minute walk from Exit A6
After exiting the subway turnstiles, follow the underground walkway toward Exit A6.
Take the elevator to the ground floor.
When you exit the elevator at ground level, turn left and proceed along the road in front of you.
Go straight at the first intersection after exiting to the street level.
This is the second intersection. Please continue straight ahead here as well.
※Turn right at the next intersection.
You will reach a slightly wider two-lane road with two-way traffic. You should be able to see a FamilyMart diagonally to your right across the intersection. Do not cross at the crosswalk — instead, turn right along the near sidewalk.
You will see a prescription pharmacy on your right. Our clinic is just ahead from there. If you look up, you should also see the sign for an orthopedic clinic, which can serve as a landmark.
Welcome to Ningyocho General Internal Medicine Clinic.
If you have a fever, please use the dedicated entrance for patients with fever (indicated by the red arrow). A doorbell is located at the door — please press it and wait. A staff member will come to greet you and guide you directly to the examination room without passing through the waiting area.
From Suitengumae Station (Tokyo Metro Hanzomon Line) — 3-minute walk
After exiting the subway ticket gates at Suitengumae Station, walk through the underground passage and exit to street level via Exit 8.
Once you come up the stairs and reach street level, continue straight ahead in the same direction you’re facing.
The photo may be a little hard to see, but once you exit from Exit 8 (above ground), you will see “Imahan” straight ahead. Please continue walking straight in the direction of Imahan (as indicated by the arrow).
※Behind you, there is a large intersection.
Cross one crosswalk, and at the corner of the second crosswalk, you will see Ningyocho Station (Tokyo Metro Hibiya Line). Turn left there. It is approximately a 1-minute walk from the street-level exit of Suitengumae Station.
You will see a FamilyMart on your left. Please continue straight ahead.
You will pass a pharmacy that we are affiliated with, and you will notice a sign for an orthopedic clinic on the second floor of the building ahead. Our clinic is located just beyond that point.
If you have a fever, please press the doorbell located at the door designated for fever patients (marked with a red arrow) and wait. A staff member will come to meet you and guide you directly to the examination room without passing through the waiting area.
03-5843-6714