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weight loss · IN
Medical visa (M visa) available for up to 60 days, extendable. Requires letter from Indian hospital. Medical attendant visa available for companions.
Sleeve gastrectomy removes approximately 80% of the stomach laparoscopically, creating a tube-shaped stomach that restricts food intake and reduces hunger hormones. It is one of the most commonly performed bariatric procedures worldwide. The procedure is irreversible and requires lifelong dietary changes.
Full procedure guide →Sleeve gastrectomy is a major bariatric procedure with non-trivial 30-day complication and mortality rates; multidisciplinary work-up and lifelong post-operative supplementation and follow-up are critical to outcomes. India's bariatric centres are concentrated in Chennai, Mumbai, Delhi, and Bangalore; India regulates physicians through the National Medical Commission (which superseded the Medical Council of India in 2020); NABH operates the leading hospital accreditation programme and consumer commissions hear most clinical-negligence claims. Confirm that the centre operates a multidisciplinary team (surgeon, dietitian, psychologist), provides documented intra-operative leak testing, and supports lifelong follow-up — many post-bariatric problems present months or years later.
Source: National Medical Commission
India's framework is unusual in giving consumer-protection forums a primary role in clinical negligence claims. Following the Supreme Court's 1995 decision in Indian Medical Association v VP Shantha, medical services fall within the Consumer Protection Act, which means patients can bring claims before consumer commissions at district, state, and national levels — typically with lower court fees, faster timelines, and simpler procedures than ordinary civil courts. The Consumer Protection Act 2019 has expanded jurisdiction and introduced product-liability principles. Disciplinary oversight sits with the National Medical Commission (NMC), which superseded the Medical Council of India in 2020, and with state medical councils. NABH operates the leading national hospital accreditation programme and publishes inspection-pass status. Civil litigation under tort principles remains available but is rarely the first route for foreign patients given the timelines involved. International patients should retain documentation in English where possible; Indian courts and consumer commissions accept English-language filings.
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The M-category medical visa requires a letter from the treating Indian hospital confirming the appointment and nature of treatment, along with a standard visa application. It can be obtained for stays of up to sixty days, extendable within India, and includes a companion (attendant) visa for an accompanying family member or carer. Applications are made through the Indian embassy or high commission in the patient's home country.
India uses the Indian Rupee (INR). Major international hospitals in Delhi and Mumbai accept payment by international credit card and can provide cost estimates in US dollars or other currencies. Currency exchange facilities are available at international airports. Bringing a small amount of cash in US dollars or euros provides a useful backup.
English is an official language of India and the working language of the medical profession throughout the country. At JCI and NABH-accredited hospitals catering to international patients, all clinical communication — consultations, discharge summaries, operative notes — is conducted in English as standard. This is one of India's significant practical advantages as a medical tourism destination.
India's the registry-listed private hospitals have twenty-four-hour emergency departments equipped to manage complex medical emergencies. Travel insurance with medical emergency and repatriation coverage is essential, as uninsured emergency care at private hospitals can be expensive. The national emergency number in India is 112, and most major hospitals have dedicated emergency helplines.
The Consumer Protection Act 2019 covers medical negligence, and patients can file complaints with the District, State, or National Consumer Disputes Redressal Commission. This system is more accessible than traditional civil litigation and has a track record of awarding compensation. The National Medical Commission also handles professional misconduct complaints.
Indian hospitals at the international standard routinely prepare comprehensive discharge packages including operative notes, imaging, pathology reports, and post-operative instructions in English. Before discharge, confirm that all documents have been provided and share them with your GP or relevant specialist at home. The international patient department can liaise directly with home-country physicians if needed.
The major medical tourism cities — Delhi, Mumbai, Chennai, and Hyderabad — are navigable and generally safe for international patients when using established transport and accommodation. The hospitals themselves provide comprehensive support including airport pickup, accommodation assistance, and security within the hospital campus. Standard urban precautions apply in the wider city.
Delhi experiences extreme heat in summer (April to June, exceeding 40°C) and a cool winter (November to February). Mumbai is hot and humid year-round with a heavy monsoon season from June to September. For elective procedures requiring outdoor activity during recovery, the October to March window in northern India is generally the most comfortable. Patients recovering in air-conditioned hospital accommodation are less affected by seasonal variation.
NABH — the National Accreditation Board for Hospitals and Healthcare Providers — is India's domestic hospital accreditation body and operates to standards broadly comparable with JCI, though the two are separate schemes. NABH accreditation is widespread across the Indian private hospital sector and provides a meaningful quality signal for domestic and international patients alike.
Yes. The Indian medical visa includes provision for a companion (attendant) visa for one accompanying family member or carer, which allows them to stay for the duration of the patient's treatment. This is a practical and valued feature for patients undergoing complex or lengthy procedures who require support during their stay.
Most patients lose fifty to seventy per cent of their excess body weight within twelve to eighteen months of surgery. The exact amount depends on starting weight, adherence to dietary guidelines, and lifestyle factors including physical activity.
No. Sleeve gastrectomy permanently removes approximately eighty per cent of the stomach, and this cannot be reversed. However, in cases where results are insufficient, the procedure can be converted to a gastric bypass or duodenal switch in a subsequent operation.
Yes. Because the reduced stomach size limits nutrient absorption and the volume of food that can be consumed, lifelong supplementation with a multivitamin, vitamin B12, calcium, vitamin D, and iron is essential. Deficiencies develop gradually and must be monitored with regular blood tests.
The sleeve can gradually expand over time, particularly with persistent overeating, though it will not return to its original size. Significant stretching is one factor that contributes to weight regain in some patients several years after surgery, alongside changes in eating habits.
Significant weight loss often results in loose or redundant skin, particularly in the abdomen, thighs, and upper arms. The extent depends on the amount of weight lost, age, skin elasticity, and genetics. Body contouring surgery can address this but is a separate procedure.
The procedure is performed under general anaesthesia and is not painful during surgery. Post-operative discomfort — typically described as soreness at the port sites and shoulder-tip pain from the gas used in laparoscopy — is usual for the first few days and is managed with analgesics.
Most programmes require a BMI of 40 or above, or a BMI of 35 or above combined with at least one obesity-related condition such as type 2 diabetes, hypertension, or sleep apnoea. A psychological evaluation and nutritional assessment are typically required before approval.
Many patients experience significant improvement or complete remission of type 2 diabetes following sleeve gastrectomy, often within weeks of surgery — before major weight loss has occurred. This is attributed to hormonal changes rather than weight loss alone, though results vary and the condition may return over time.