guarantee
Bariatric Operations in Tokyo: Who They Suit
for good —
14,000 CMC patients now live in a new body. The result is secured by an official contract — a legal commitment, not a spoken one.
patients
experience
from excess weight
rating
Bariatric Operations in Tokyo: Who They Suit
for good —
Everything for the result — included
Bariatric surgery —
is it right for me?
Tick the situations that sound familiar.
From 2 matches — a reason to talk to a surgeon.
Everything needed for the result —
already included
Hidden fees? None. Surprises? None. One package, full route.
Bariatric surgery —
is it right for me?
Tick the situations that sound familiar.
From 2 matches — a reason to talk to a surgeon.
Reasons to see a surgeon
A surgical consultation makes sense with a high BMI and also with related conditions
Medical history
Excess weight since childhood or a genetic predisposition
Metabolic disorders
Type 2 diabetes and hypertension associated with obesity
Resistance to conservative treatment
Several years of diets and medication, and nothing that lasted.
Medical history
Excess weight since childhood or a genetic predisposition
Metabolic disorders
Type 2 diabetes and hypertension associated with obesity
Resistance to conservative treatment
Several years of diets and medication, and nothing that lasted.
When is bariatric surgery justified?
Surgery is prescribed only when clear criteria are met
The role of body mass index (BMI)
BMI is the principal gauge of how advanced obesity is, found by dividing body weight (kg) by height squared (m²). Typically, a BMI above 40 — or above 35 with serious related conditions — justifies surgery. Some patients with lower values are considered for surgery too, if non-surgical options have failed.
Key factors
- The patient's body mass index (BMI)
- Overall health and any related chronic conditions
- Conventional weight-loss methods have failed in past attempts
Why don't diets and exercise work for everyone?
Many spend years on diets and exercise, and the body fights them all the way: metabolism slows, appetite grows, the lost kilos come back. As soon as it is clear that medication and diet changes alone cannot fundamentally improve the situation, bariatric surgery is the only effective way out.
Key factors
- The patient's body mass index (BMI)
- Overall health and any related chronic conditions
- Conventional weight-loss methods have failed in past attempts
The role of body mass index (BMI)
BMI is the principal gauge of how advanced obesity is, found by dividing body weight (kg) by height squared (m²). Typically, a BMI above 40 — or above 35 with serious related conditions — justifies surgery. Some patients with lower values are considered for surgery too, if non-surgical options have failed.
Why don't diets and exercise work for everyone?
Many spend years on diets and exercise, and the body fights them all the way: metabolism slows, appetite grows, the lost kilos come back. As soon as it is clear that medication and diet changes alone cannot fundamentally improve the situation, bariatric surgery is the only effective way out.
Medical indications
for bariatric surgery
If you have chronic conditions, please see a clinic doctor first!
Indications
Excess weight
Type 2 diabetes
Hypertension
Sleep apnea
Joint disease
Varicose veins
Fatty liver disease
Reproductive health problems
Contraindications
Age under 18
Malignant tumors
Less than six months since breastfeeding ended
Acute illness or flare-ups of chronic disease
Severe chronic and mental illness
Blood clotting disorders
Pregnancy
Bariatric surgery methods at City Medical Centre
Sleeve gastrectomy
Most of the stomach is removed in the operation, leaving a narrow tube. Portion size falls dramatically and ghrelin, the hunger hormone, declines, meaning the patient gets full much sooner and eats less.
Effectiveness: fits patients with a BMI of 35 to 45. They lose 60–70% of excess weight on average.
Specifics: the effect is less durable than with bypass procedures. Ignoring the diet, especially high-calorie drinks and liquid meals, may bring the weight back.
Roux-en-Y gastric bypass
At the top of the stomach the surgeon makes a small 50–70 ml pouch, linking it directly to the small intestine. Intake of food is restricted and calorie absorption falls, since food passes through less of the gut.
Effectiveness: the “gold standard” for patients with a BMI over 45–50 and type 2 diabetes. Up to 75–85% of excess weight is lost.
Specifics: the result endures better than with alternative bariatric methods. Associated diabetes and hypertension frequently go into remission. Lifelong vitamin and mineral supplements are required because the digestive anatomy changes.
Mini gastric bypass (MGB)
This operation is an improvement on the classic bypass. Compared with the standard technique, the surgeon creates a single connection (anastomosis) between the small stomach and the small intestine. Its simplicity makes it easier for the patient, with less recovery time.
Effectiveness: comparable to the classic Roux-en-Y bypass — patients lose up to 75–80% of excess weight.
Specifics: surgery takes less time and recovery is faster. It can technically be reversed; the single anastomosis, though, poses a risk of bile reflux.
Single anastomosis duodeno-ileal bypass (SADI-S)
SADI-S is a contemporary combined technique uniting what is best in sleeve gastrectomy and intestinal bypass. Two stages are involved: first a narrow tube is formed from the stomach, then the small intestine is rerouted, leaving most of it outside active digestion.
Effectiveness: among bariatric operations, one of the most powerful — 80–90% of excess weight goes, and it lasts long.
Specifics: a smaller stomach reduces appetite by removing the ghrelin-producing zone, and rerouting food past part of the intestine limits calorie absorption. It suits super obesity (BMI over 50), severe type 2 diabetes, or as a second stage after an ineffective sleeve.
Book a consultation
Call or message us -
our coordinator will contact you shortly
and book your consultation
Book a consultation
Call or message us -
our coordinator will contact you shortly
and book your consultation
Preparing for bariatric surgery at City Medical Centre
A surgeon's consultation comes first — reviewing medical history, picking a method, planning recovery
Lab tests
Complete blood count, urinalysis, blood biochemistry, HbA1c and a coagulation panel (clotting test).
Instrumental diagnostics
Chest X-ray and ECG, abdominal and renal ultrasound, Doppler of leg veins.
Endoscopy
Gastroscopy (required) and colonoscopy (if indicated).
Specialists
GP, endocrinologist, psychiatrist, cardiologist and gynecologist (for women).
Diet
Cut back on fast carbs and fats 2–4 weeks before surgery, and eat light the day before.
Lifestyle
A month prior, give up smoking, ease off exercise and steer clear of stress.
The day before
Last light food in the evening, last liquids 3–4 hours prior to surgery.
Lab tests
Complete blood count, urinalysis, blood biochemistry, HbA1c and a coagulation panel (clotting test).
Instrumental diagnostics
Chest X-ray and ECG, abdominal and renal ultrasound, Doppler of leg veins.
Endoscopy
Gastroscopy (required) and colonoscopy (if indicated).
Specialists
GP, endocrinologist, psychiatrist, cardiologist and gynecologist (for women).
Diet
Cut back on fast carbs and fats 2–4 weeks before surgery, and eat light the day before.
Lifestyle
A month prior, give up smoking, ease off exercise and steer clear of stress.
The day before
Last light food in the evening, last liquids 3–4 hours prior to surgery.
Our specialists
Skilled bariatric surgeons who genuinely care about patient health
Ruslan S. Menzulin
Bariatric surgeon · surgical oncologist
Mercy clinic training under Vadim Gushchin; speaker at the World Congress of bariatric surgery (2025). Among the co-authors of an international study in The Lancet.
Andrey G. Ugay
Lead bariatric surgeon · surgeon
Has carried out the largest number of SASJ operations in the country. Serves on the expert council of the national Society of Bariatric Surgeons and presents regularly at national and international congresses.
City Medical Centre bariatric surgery centre
— your path
to confidence and harmony
City Medical Centre takes a full-picture approach to obesity. Once the first examination is done, each patient gets a tailored diagnostic program (lab and instrumental) that reveals every disorder in the body.
A method matched to your goal
The surgical method is selected individually by our doctors for every patient. Your health, weight history and related conditions are reviewed first, so the most suitable surgical treatment can be offered.
Support that stays in touch
The City Medical Centre team stays with you after surgery. Throughout the first year, specialists track your weight loss, monitor your tests and answer all questions about diet and recovery.
Fast recovery
City Medical Centre performs bariatric operations laparoscopically, which shortens recovery considerably. Most patients are on their feet on day one and back to normal life within a week.
Full diagnostics on site
Forget going between clinics. Everything for your work-up is here, including our own lab, ultrasound and gastroscopy. Preparation is quick and queue-free, all in a single building.
Recovery after bariatric surgery
Recovery is mostly down to the individual; still, minimally invasive laparoscopic methods keep rehabilitation as short as possible.
Duration
A clinic stay of 1 to 5 days under observation follows, depending on surgical extent and related conditions.
Activity
In the first hours post-op, sitting up, standing and drinking fluids are fine.
Wound care
Absorbable sutures are used; they dissolve on their own.
Work
You may get back to work 7–14 days post-surgery, depending on the physical load of your job.
Restrictions
Bathhouse, sauna and intense physical exercise are banned in early weeks.
Diet
A step-by-step diet lasts 1–2 months, from liquids to solids, giving the stomach time to adapt.
Pace
By following the specialists' advice, patients lose 10% of excess weight per month on average.
Stabilization
It takes 1.5–2 years to reach the final result. By then, the patient has formed steady eating habits that keep weight from coming back.
Important! City Medical Centre specialists supervise your recovery and support you psychologically and medically at every stage of weight loss.
Duration
A clinic stay of 1 to 5 days under observation follows, depending on surgical extent and related conditions.
Activity
In the first hours post-op, sitting up, standing and drinking fluids are fine.
Wound care
Absorbable sutures are used; they dissolve on their own.
Work
You may get back to work 7–14 days post-surgery, depending on the physical load of your job.
Restrictions
Bathhouse, sauna and intense physical exercise are banned in early weeks.
Diet
A step-by-step diet lasts 1–2 months, from liquids to solids, giving the stomach time to adapt.
Pace
By following the specialists' advice, patients lose 10% of excess weight per month on average.
Stabilization
It takes 1.5–2 years to reach the final result. By then, the patient has formed steady eating habits that keep weight from coming back.
Important! City Medical Centre specialists supervise your recovery and support you psychologically and medically at every stage of weight loss.
Book a consultation
Call or message us -
our coordinator will contact you shortly
and book your consultation
Book a consultation
Call or message us -
our coordinator will contact you shortly
and book your consultation
Frequently asked questions
about bariatric surgery at CMC
Bariatric vs plastic surgery: what's the difference?
Many people confuse them, but the goals are fundamentally different. Bariatric surgery is a medical way to treat obesity and related diseases. It changes how the digestive tract works, getting at the causes of excess weight and metabolism. Plastic surgery only reshapes the body's outer contours; it does not treat obesity or affect metabolism.
How soon can I return to work and normal life?
Will there be visible scars?
We use modern laparoscopic technique. The operation is done through 4 small punctures of 5 to 15 mm. Cosmetic sutures are placed, so once healed the marks become almost invisible.
What diet do I need to follow?
Your diet changes step by step: from liquid food to soft and then to solid. The emphasis is on protein and on cutting high-calorie, fatty food.
What types of bariatric surgery are there?
City Medical Centre carries out four main types of bariatric surgery: sleeve gastrectomy, Roux-en-Y gastric bypass, mini gastric bypass (MGB) and SADI-S duodeno-ileal bypass. The choice of method is individual, based on BMI, related conditions and the patient's goals.
Can I plan a pregnancy after surgery?
Pregnancy after bariatric surgery can happen, though doctors advise holding off at least 12–18 months. In this period the body becomes stable, weight reaches target values and nutritional status normalizes.
Do I need to take vitamins after surgery?
Yes, vitamins are essential after bariatric surgery. As digestive anatomy changes, the body absorbs certain nutrients less well, so regular vitamin and mineral supplements become a lasting part of the patient's life.
Can the weight come back?
Regain after bariatric surgery is possible, but very unlikely if you follow the doctor's advice. Proper nutrition, no high-calorie drinks and regular follow-up visits with City Medical Centre specialists make the difference.
Prices
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Service
Discounted price
City Medical Centre licences
Other services at our clinic
How obesity surgery works for Tokyo residents
All bariatric operations here are laparoscopic, performed through four small punctures of 5 to 15 mm with cosmetic sutures, so the marks become almost invisible after healing. This greatly shortens recovery. For those from Tokyo, the choice between sleeve, classic bypass, mini bypass and SADI-S depends on BMI, related diseases and the result you want to reach.
The final result is reached in 1.5–2 years. Throughout the first year the team tracks weight loss, monitors tests and answers questions about diet and recovery, providing psychological and medical support at every stage. For patients in Tokyo, regular follow-up with specialists and avoiding high-calorie drinks are the keys to keeping the result for good.
Everything needed for the result is combined in one package, with no hidden fees and no surprises. For patients from Tokyo, it includes surgery by a dedicated team, round-the-clock care in the ward with meals and nursing, a doctor nearby 24/7 and a personal coordinator. The first step is a free 15-minute consultation with a bariatric surgeon.
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