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What is a Gastric Ulcer?

A gastric ulcer is an open sore that develops in the lining of the stomach when the protective lining is damaged. It is a type of peptic ulcer and can cause upper abdominal pain, indigestion, nausea, bloating, or early fullness. Some people may have few or no symptoms until a complication such as bleeding occurs. The two most common causes of peptic ulcers are Helicobacter pylori (H. pylori) infection and the use of nonsteroidal anti-inflammatory drugs (NSAIDs).

What is the Importance of Timely Treatment?

Timely diagnosis and treatment can help the ulcer heal and reduce the risk of complications. An untreated gastric ulcer may cause bleeding, perforation of the stomach wall, penetration into nearby organs, or gastric outlet obstruction. Treatment also involves identifying and addressing the underlying cause, particularly H. pylori infection or NSAID use. A gastric ulcer that does not heal or keeps returning may require further evaluation, including endoscopy and biopsy, to identify the cause and rule out other conditions affecting the stomach.

What are the Common Symptoms of a Gastric Ulcer?

  • Burning or aching pain in the upper abdomen
  • Indigestion or abdominal discomfort
  • Feeling full sooner than usual while eating
  • Uncomfortably full after meals
  • Nausea or vomiting
  • Bloating
  • Belching
  • Reduced appetite in some patients

Causes and Risk Factors of a Gastric Ulcer

Causes

  • Helicobacter pylori (H. pylori) infection: A common cause of gastric ulcers that damages the protective lining of the stomach.
  • Nonsteroidal Anti-Inflammatory Drugs (NSAIDs): These medicines can increase ulcer risk, particularly with prolonged use or higher doses.
  • Other less common causes: These include uncommon medical conditions that cause excessive acid production, certain infections, and severe physiological stress in critically ill patients.

Risk Factors

  • H. pylori infection
  • Long-term or high-dose NSAID use
  • Previous history of peptic ulcer disease
  • Smoking
  • Older age
  • Use of medicines that can increase ulcer or bleeding risk, particularly when combined with NSAIDs
  • Certain chronic illnesses or conditions affecting

Latest Research and Technologies in the Treatment of Gastric Ulcers in Thailand

  • Current approaches to gastric ulcer management focus on identifying the underlying cause, promoting ulcer healing, and preventing recurrence and complications. H. pylori testing and treatment are important when infection is present, with antibiotic selection guided by treatment history and local resistance patterns where possible. Proton pump inhibitors (PPIs) remain a standard treatment, while potassium-competitive acid blockers (P-CABs) are another acid-suppressing option in appropriate settings. Endoscopic techniques, including clips and thermal therapy, can be used to control bleeding ulcers.

Treatment options for Gastric Ulcer

Proton Pump Inhibitors (PPIs): Suppress gastric acid production to allow the stomach tissue to heal.

Upper Gastrointestinal (UGI) Endoscopy : During this procedure, a gastroenterologist inserts a thin, flexible tube equipped with a light and a camera (an endoscope) through the mouth and down into the stomach to visually inspect the digestive lining


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Endoscopic Hemostasis: Stops active internal bleeding using clips, heat therapy, or targeted injections.

  • Clinical assessment:
    • Review of symptoms, including abdominal pain, nausea, vomiting, indigestion, early fullness, and signs of bleeding.
    • Medical and family history, including previous ulcers, H. pylori infection, NSAID use, and relevant gastrointestinal conditions.
    • Review of prescription, over-the-counter, and other medicines.
    • Physical examination, including assessment of abdominal tenderness and signs of complications.
    • Upper GI endoscopy: A flexible camera directly examines the oesophagus, stomach, and duodenum. It can identify an ulcer and allow tissue samples when needed.
    • Assessment for warning signs such as gastrointestinal bleeding, severe abdominal pain, dizziness, or fainting.
  • Medicines used in gastric ulcer management generally aim to reduce stomach acid, promote ulcer healing, and address the underlying cause. Treatment may include acid-suppressing medicines, antibiotics when H. pylori infection is present, and other supportive medicines depending on the patient’s symptoms and condition. If certain medications contribute to ulcer formation, the treatment plan may be adjusted to reduce further stomach irritation and prevent recurrence.

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Hospitals for Gastric Ulcer in Thailand

Piyavate Hospital: Top Doctors, and Reviews
Piyavate Hospital

Bangkok, Thailand

Piyavate Hospital located in Bangkok, Thailand is accredited by JCI. Also listed below are some of the most prominent infrastructural details:

  • Medicine Centre: Piyavate Hospital provides advanced holistic treatment for their patients. They offer a complete range of services and physicians that specialize in various fields like the endocrine system, the nervous system, kidney function, cardiovascular care, respiratory and digestive system. They pride themselves for the familial care that they provide to their patients.

  • Fertility and In-Vitro Fertilization Centre: Helping the couples who walk into the Piyavate Hospital to achieve their dream of having a family. They have a medical team that specializes in male and female fertility. They offer consultation services, fertility check-up for both men and women and complete IVF services. They have advanced IVF cycle treatment facilities that offer a high rate of success.

  • Bone and Joint Institute: Piyavate Hospital houses one of the frontrunners in Orthopaedic health care in all of SouthEast Asia. They offer a wide range of services and surgeries in their bone and joint institute that include hand surgery, hip and knee replacement surgery, spinal cord surgery, upper extremity surgery, arthroscopic surgery and sports medicine.

  • Eye and Lasik Centre: Piyavate Hospital is fully equipped with the latest and most advanced technology for eye care and houses highly skilled ophthalmologists, sub-specialists and qualified nurses.

  • Physical Therapy and Rehabilitation Centre: One of the first hospitals to be equipped with the Hybrid Assistive Limb technology that will help a neurologically challenged patient to control the rehabilitation robot limb with a signal from their brain. The Physical Therapy and Rehabilitation Centre at Piyavate Hospital uses this system encourage patients to regain muscle memory to walk and function normally.

Amenities for Patient’s Family:

Piyavate Hospital also offers additional apartment facilities to house the kin of the patients who come to visit them from distant places. A restaurant, a flower shop and a café are a few of the other amenities provided by the hospital.

These are the most popular services offered by the Piyavate Hospital in Bangkok, Thailand. They also provide a plethora of other medical services that are listed below:

  • Diabetic Foot Centre

  • Check-up centre

  • Urology Centre 

  • Heart Institute

  • Paediatric Centre 

  • Obstetrics and Gynaecology Centre

  • Surgery Centre

  • Ear Nose Throat Centre

  • Haemodialysis Centre 

  • Dental Centre

  • X-Ray Centre

  • Gastroenterology Centre

  • Cancer Centre

  • Neonatal Intensive Care Unit (NICU)

  • Emergency Services and Centre

  • Tele-medicine

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Sukumvit Hospital, Bangkok: Top Doctors, and Reviews
Sukumvit Hospital, Bangkok

Bangkok, Thailand

  • Sukumvit Hospital has provided a comprehensive range of healthcare services since 1977. It is committed to providing patient-centred care by combining advanced medical technologies and employing highly skilled, multi-specialised physicians to ensure that each patient receives high-quality treatment across all the various areas of medicine offered at the facility. They offer modern diagnostics, minimally invasive surgical procedures, rehabilitation, emergency services, and a full array of international patient services, while maintaining stringent standards for patient safety and personalised healthcare.
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Sikarin Hospital: Top Doctors, and Reviews
Sikarin Hospital

Bangkok, Thailand

Apart from in-detail treatment procedures available, Sikarin Hospital located in Bangkok, Thailand has a wide variety of facilities available for International Patients. Some of the facilities which are provided by them are Airport Transfer, Choice of Meals, Interpreter, SIM, TV inside room. Also listed below are some of the most prominent infrastructural details:

  • Sikarin Hospital has a 258-bed capacity.
  • The hospital caters to the healthcare needs of both local and international patients.
  • Dedicated and skilled, experienced healthcare professionals are the strength of the organization.

It has also received many awards and certifications and some of them are:

  • APSIC CSSD Center of Excellence Award (2017-18)
  • Accreditation by the Joint Commission International
  • HA-Hospital/Healthcare Accreditation
  • HACCP Certificate of Registration
  • The Best Under a Billion Award 
  • ISO 14001 Environment Management System
  • ISO 9001 Quality Management System

The various clinics and centers of Sikarin Hospital are as follows:

  • Pediatric Institute
  • Orthopedic Institute
  • Dental Center
  • Health Check-up Center
  • Heart Disease Center
  • Cerebral and Nervous System Center
  • Internal Medicine Clinic
  • Diagnostic Radiology Center
  • Diagnostic Laboratory
  • Endoscopic Surgery Center
  • International Medical Center
  • Emergency Medical Center
  • Sikarin Beauty Center
  • Eye Center
  • Rehabilitation Center
  • Women’s Health Center
  • Ear, Nose and Throat Center
  • Specialized Internal Medicine Center
  • Center for Gastrointestinal and Liver Diseases

The medical technology present in Sikarin Hospital is outlined here:

  • MRI (Magnetic Resonance Imaging) magnetic resonance imaging
  • Hybrid Operating Room
  • Endoscopic Surgery - Gastrointestinal medical technology with tiny capsules
  • S.R. Laboratory
  • Cardiac Catheterization Lab 
  • Dental Operating Microscope, an innovative endoscopic root canal treatment
  • 128-Slice CT Scan
  • ORTHOPANTOMOGRAPH OP 3D oral X-ray machine
  • Digital Mammogram
  • Optical Coherence Tomography
  • INFRARED (IR) IMAGING Surgical Technology “Cure Cancer” – Direct, Accurate, Fast
  • 3D endoscopic surgery technology
  • Laparoscopic Surgery
  • Dental Aerosol Suction Dental Intraoral Aerosol Remover
  • Comprehensive Dental Center
  • iTeroElement 5D
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Why Choose Thailand for Gastric Ulcer Treatment?

  • Experienced Gastroenterology Specialists: Choose hospitals with experienced gastroenterologists and gastrointestinal surgeons who treat gastric ulcers, H. pylori infection, and complications such as gastrointestinal bleeding. Specialist expertise matters, especially when endoscopic or surgical treatment is needed.
  • Advanced Endoscopy and Diagnostic Facilities: Access to upper GI endoscopy, biopsy, H. pylori testing, and pathology services can support accurate diagnosis and treatment planning. Endoscopy may also allow doctors to treat bleeding ulcers when required.
  • Emergency and Multidisciplinary Care: Hospitals should have emergency and intensive-care facilities for patients who develop serious complications such as severe bleeding or perforation. Multidisciplinary teams can coordinate gastroenterology, surgery, radiology, and critical care when needed.
  • Comprehensive Treatment and Follow-Up: Patients can consider hospitals that provide complete care, from diagnosis and H. pylori eradication to endoscopic treatment and follow-up. Continuity of care is important for monitoring healing and confirming successful treatment when needed.
  • International Patient Support: International patients may also consider hospitals experienced in treating overseas patients, with support for communication, appointments, treatment coordination, documentation, and follow-up. These services can make coordinating treatment from abroad easier.

Frequently Asked Questions

Many gastric ulcers heal within 4-8 weeks with appropriate treatment, but healing time varies by ulcer size, cause, severity, and response to medication. H. pylori infection must be treated when present, and NSAID use may need to be reviewed. Some gastric ulcers require repeat endoscopy to confirm healing.

Yes. A gastric ulcer generally doesn't prevent you from walking. You can usually continue normal physical activity, depending on your tolerance, unless a doctor has advised restrictions because of severe symptoms or complications. If you experience severe abdominal pain, dizziness, weakness, or signs of bleeding, seek medical attention rather than continuing normal activities.

Many hospitals in Thailand offer modern gastric ulcer care, including upper GI endoscopy, biopsy facilities, H. pylori testing, and endoscopic techniques to manage gastrointestinal bleeding. Availability varies between hospitals and should be assessed based on the patient's specific needs.

Several Thai hospitals have dedicated international-patient departments that may assist with treatment coordination, appointments, documentation, accommodation arrangements, and other practical aspects of care. Services vary between hospitals, so international patients should confirm what support is available before treatment.

Rather than relying on a single ranking, consider the gastroenterologist's experience with gastric and peptic ulcer disease, the hospital's endoscopy and pathology facilities, availability of emergency gastrointestinal bleeding management, multidisciplinary support, and follow-up care arrangements.

No single success rate applies to all gastric ulcers. Outcomes depend on the underlying cause, H. pylori status, ulcer severity, complications, medication adherence, and response to treatment. Most peptic ulcers heal when doctors treat the underlying cause appropriately.

Thailand has gastroenterologists and gastrointestinal surgeons who manage gastric ulcers and their complications. When choosing a specialist, patients should review the doctor's training, experience in therapeutic endoscopy, management of gastrointestinal bleeding, and experience with complicated ulcer disease.

Treatment risks depend on the treatment used. Medicines can cause side effects or interactions, while endoscopy has procedural risks. Gastric ulcers themselves can also cause serious complications, including bleeding, perforation, penetration, and obstruction.

Seek emergency medical care if you vomit blood, pass black tarry stools, experience fainting or severe dizziness, or develop sudden, severe abdominal pain. These symptoms may indicate bleeding or perforation. Do not attempt to manage these complications at home or delay emergency assessment.

Most gastric ulcers heal with appropriate treatment. However, severe or recurrent ulcers can cause complications such as scarring, narrowing near the stomach outlet, perforation, or significant blood loss. Persistent ulcers need further evaluation to identify the underlying cause and exclude other stomach conditions, including malignancy.

Yes. Upper abdominal pain, nausea, indigestion, early fullness, and reduced appetite can interfere with eating, sleep, and daily activities. Recurrent symptoms or complications may have a greater impact. Appropriate treatment and management of the underlying cause can improve symptoms and reduce the risk of recurrence.

An untreated gastric ulcer may persist, worsen, or recur. Possible complications include gastrointestinal bleeding, perforation of the stomach wall, penetration into nearby organs, and gastric outlet obstruction. A gastric ulcer that does not heal or has suspicious features may require repeat endoscopy and biopsy to investigate the cause.

Prevention includes testing for and treating H. pylori when indicated, taking prescribed medication for the recommended duration, and avoiding unnecessary NSAID use. If you need regular anti-inflammatory medicines, discuss alternatives and stomach protection with your doctor. Avoid smoking and attend recommended follow-up appointments.

Risk is higher in people with H. pylori infection, those who regularly use NSAIDs, older adults, smokers, and people with a previous history of peptic ulcers. Certain medicines, particularly when combined with NSAIDs, can increase the risk of complications.

Author

Nimra Haseeb
Nimra Haseeb

MSc Biochemistry

4 Years of Experience

Miss Nimra Haseeb is a medical researcher and a scientific content writer. She holds a Bachelor’s degree in Biotechnology and a Master’s in Biochemistry from Integral University, Lucknow. With strong experience in healthcare research, she specializes in secondary research, clinical data analysis, and evidence-based medical writing. Her work focuses on transforming complex scientific and medical information into clear, accurate, and reliable healthcare content for patients and healthcare audiences. She is also experienced in interpreting medical studies and healthcare trends to deliver well-researched and informative content that supports better health awareness and decision-making. View More