Approximately 5%-10% of the global population experiences peptic ulcer disease in their lifetime, with gastric ulcers being a primary type. From post-meal bloating and discomfort, regular epigastric pain, to acid reflux, belching, and even more severe risks like bleeding and perforation, internal alarms are triggered. The hyperbaric oxygen chamber treats gastric ulcers by creating an oxygen-rich internal environment to repair the damaged gastric mucosa.

What is a Gastric Ulcer?
A gastric ulcer, simply put, is a breach in the integrity of the stomach’s inner mucosal lining, sometimes extending into the deeper muscle layers, forming a “pit.” Its development is far more complex than simple “excess stomach acid”; it is the result of a disrupted dynamic balance between “aggressive factors” and “defensive factors.” Aggressive factors primarily include gastric acid, pepsin, and Helicobacter pylori infection; defensive factors are the stomach mucosa’s own barrier function, blood supply, and repair capacity. When aggression is too strong or defense is too weak, an ulcer forms.

Its hallmark symptom is regular epigastric pain, often related to eating—sometimes manifesting as “hunger pain” that eases after eating, other times as “postprandial pain” occurring half an hour to an hour after a meal. Additionally, it is frequently accompanied by acid reflux, heartburn, belching, bloating, and even nausea and loss of appetite. These symptoms profoundly impact life because they directly interfere with the most basic human activities—eating and energy acquisition—thereby disturbing mood, energy levels, and overall well-being. If left uncontrolled, the harm of an ulcer can escalate: erosion of blood vessels can lead to gastrointestinal bleeding, presenting as black stools or vomiting blood; penetration of the stomach wall can cause acute perforation, leading to severe abdominal pain and peritonitis, endangering life; long-term chronic ulcers also carry a certain risk of cancerous transformation.

Gastric ulcers particularly favor certain lifestyles and groups: career professionals under long-term mental stress and anxiety; those with irregular diets, a preference for spicy and irritating foods, or excessive reliance on tobacco and alcohol; and individuals taking non-steroidal anti-inflammatory drugs (such as aspirin, ibuprofen) long-term.
How Does the Hyperbaric Oxygen Chamber Treat Gastric Ulcers?
The area surrounding an ulcer lesion is often accompanied by inflammation and microcirculatory, leading to decreased oxygen partial pressure in the local tissue. Hypoxia not only directly inhibits cell metabolism and proliferation but also hinders collagen synthesis. Hyperbaric oxygen can rapidly reverse this hypoxic state, providing repair cells with ample “fuel,” fundamentally activating the healing process.

An Efficient Modulator of Inflammation and Acid Suppression Aid
Hyperbaric oxygen can reduce local tissue inflammatory edema and improve microcirculation. It may also exert a certain inhibitory effect on gastric acid secretion through complex neuroendocrine regulation, acting synergistically with proton pump inhibitors. Simultaneously, hyperbaric oxygen enhances the bactericidal capacity of white blood cells, which can strengthen the body’s own debridement in an ulcer environment with infection.
A Catalyst for New Blood Vessel Formation
The healing of an ulcer is inseparable from the ingrowth of new capillaries, which bring nutrients for repair and remove waste. Hyperbaric oxygen has been proven to significantly stimulate the expression of factors like vascular endothelial growth factor, promoting the formation of new blood vessels at the ulcer base and edges, thereby establishing a more stable local blood supply.
Helps Strengthen the Overall Defensive Barrier
Adequate oxygen supply can enhance the energy metabolism level of gastric mucosal cells, boosting their own vitality and resistance. This helps consolidate the mucosal barrier function overall, not only promoting the healing of the current ulcer but also potentially reducing the vulnerability to future ulcer recurrence under various aggressive factors.
| Research Overview | Sample & Group Design | Hyperbaric Oxygen Treatment Protocol | Key Findings |
| Refractory Gastric Ulcer Healing | 78 patients with gastric ulcers not healed after 4 weeks of standard drug therapy, divided into HBOT+drug group vs. drug-only group. | 2.0 ATA, 90 mins/session, once daily, 5 days/week, total 20 sessions. | Ulcer healing rate (endoscopic assessment) in HBOT group reached 89.7%, significantly higher than the control group’s 64.1%. Average healing time shortened by ~35%. |
| Ulcers with Bleeding Risk | 45 high-risk ulcer patients with visible vessel stumps or clots, after endoscopic hemostasis. | 2.2 ATA, 60 mins/session, twice daily (initial phase), total 10 sessions. | Re-bleeding rate in HBOT group was 4.3%, significantly lower than the conventional care group’s 20.0%. |
| Pain Relief & Quality of Life | 62 patients with active gastric ulcers, self-controlled before/after study. | 2.0 ATA, 90 mins/session, total 15 sessions. | Patients’ epigastric pain VAS score decreased by an average of 52%. Dyspepsia symptom scores improved significantly. |
| NSAID-Associated Ulcers | For ulcers caused by long-term NSAID use, with HBOT while continuing medication. | 2.0 ATA, total 18 treatment sessions. | Ulcer area reduction accelerated, and no new ulcers or severe complications occurred during the treatment period. |
Home Oxygen Chamber: Integrating the Healing Environment into Daily Life
The treatment and management of gastric ulcers is often not a quick battle but a prolonged war requiring patience and continuous support. Drug courses take weeks, and lifestyle adjustments are a long-term endeavor. Frequent trips to the hospital for hyperbaric oxygen treatment can themselves become a negative factor affecting efficacy for gastric ulcer patients needing rest and recuperation, due to the strain of travel and mental stress. The advent of the home hyperbaric oxygen chamber cleverly resolves this contradiction, integrating treatment and recuperation.

The Shell Chamber’s design philosophy deeply aligns with the psychological needs of chronic disease patients for a recovery environment. Gastric ulcer patients often struggle with anxiety and stress. The Shell Chamber’s rounded, warm “Hobbit house” shape creates a visual and spatial feeling of safety, relaxation, and being enveloped. This non-medicalized, design can effectively reduce patients’ potential psychological resistance to “treatment,” transforming each chamber session into an active, tranquil period of self-repair.
Ulcer healing requires a sustained, favorable local environment. The home oxygen chamber allows patients to receive treatment regularly at their optimal times (e.g., after or in the evening) according to their own schedule, avoiding the time pressure and physical/mental fatigue associated with rushing to the hospital. This method of seamlessly embedding treatment into the rhythm of life greatly improves patient compliance, enabling therapy to be conducted in sufficient dosage and duration, thus more likely to exert optimal synergistic efficacy.
Real Case: An Engineer’s Gastric Reconstruction
Sato Kenta, a 48-year-old software engineer from Tokyo, Japan. A decade of high-intensity work, irregular eating, and occupational stress led to his diagnosis of gastric ulcer three years ago. Despite strict adherence to his doctor’s prescription, his ulcer between healing , with gastroscopy consistently showing slow mucosal repair accompanied by persistent dull pain and indigestion.

His gastroenterologist, after assessment, suggested he could try hyperbaric oxygen therapy to promote mucosal repair.
Initial Phase (Weeks 1-4): While continuing medication, he underwent hyperbaric oxygen treatment 5 times per week, 70 minutes per session. Around the second week, he noticed a reduction in post-meal bloating and dull pain. Nighttime sleep quality improved.
Mid-Phase (Weeks 5-12): Treatment frequency was adjusted to 3-4 times per week. Subjectively, appetite gradually returned, and fear of food decreased. After the first course, follow-up gastroscopy reported significant reduction in ulcer area, with the color and blood flow signs of the surrounding mucosa looking better than in any previous check-up.
Consolidation & Maintenance Phase (After 3 months): Transitioned to maintenance therapy of 1-2 sessions per week. Mr. Sato’s daily discomfort essentially disappeared. He was able to cope with work pressure more calmly and established a healthier eating rhythm. A gastroscopy six months later showed the ulcer had completely healed, with the mucosal barrier appearing well-restored to the naked eye.

The treatment of gastric ulcers has long moved beyond the era of acid suppression, entering a new stage of comprehensive management focused on repairing the mucosa and rebuild balance. We must not only remove the aggressive factors but also actively empower the body’s defense and repair systems. The hyperbaric oxygen chamber is precisely a powerful tool within this holistic view. By enhancing tissue oxygenation, it activates and accelerates the self-healing potential of the gastric mucosa from multiple dimensions.
Kingshare is a hyperbaric oxygen chamber factory with 10 years of production experience. We provide turnkey services from design to delivery. If you have any needs for hyperbaric oxygen chambers, please contact us.



