11/14/2025
Hyperbaric oxygen therapy (HBOT) is an adjunctive treatment primarily used to manage complications from conventional cancer therapies, such as radiation injury and surgical wounds. It is generally considered safe for cancer patients, as studies have found no evidence that it promotes tumor growth or metastasis.
Role in Cancer Care
HBOT is not a cancer treatment, and the American Cancer Society states available scientific evidence does not support its use as a primary treatment for cancer. Its main applications in oncology are supportive:
Managing Treatment Side Effects
HBOT is widely used and accepted for treating late radiation injuries, such as osteoradionecrosis (jawbone damage), radiation cystitis (bladder bleeding), and soft tissue necrosis, by promoting tissue healing and new blood vessel growth in damaged areas.
Safety Considerations
Previously, there were concerns that HBOT might accelerate cancer growth, but most recent studies and reviews indicate it is safe for patients with active or previously treated solid tumors when used for approved indications. No significant correlations have been found between the number of HBOT sessions and cancer recurrence or mortality.
Common side effects of the therapy itself are generally mild and related to pressure changes, such as ear or sinus discomfort, but serious complications are rare.
Patients should consult their oncology care team to determine if HBOT is an appropriate and safe complementary option for their specific condition.
