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Oxygen & Severe Nosebleeds

author image Jill Blessing
Based in San Diego, California, Jill Blessing has been writing since 1997. Her work has been published in "Triathlete" magazine, "CMYK" magazine, "Kansas City Homes & Gardens" magazine and "The Columbia Missourian." She holds a bachelor's degree in journalism from the University of Missouri.
Oxygen & Severe Nosebleeds
Ongoing severe nosebleeds may indicate a more serious health problem. Photo Credit: wernerimages/iStock/Getty Images

Nosebleeds are a common side effect for patients undergoing oxygen therapy. However, ongoing severe nosebleeds should be brought to the attention of your health care provider to ensure there isn’t another underlying cause.

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Dry Nasal Passage

Oxygen therapy may trigger nosebleeds by drying your nasal passages. Furthermore, according to, when your nasal membranes dry out, it may cause the interior of your nose to scab over, and as these wounds break from itching or moving your nose, they often bleed. In addition, Mayo Clinic explains that nosebleeds begin in your septum, which is the thin membrane that separates your nasal chambers.

Nasal Cannula

As the National Heart and Lung Blood Institute explains, oxygen is often supplied to patients through two small plastic tubes or prongs known as a nasal cannula. One small tube is placed into each nostril to ensure proper oxygen flow. However, because these tubes can irritate the inside of your nose, they may increase your risk of nosebleeds.


You can help prevent nosebleeds caused by supplemental oxygen use by using a humidifier to help keep your nostrils moist. Your doctor may be also able to recommend a nasal spray that can alleviate your symptoms. In addition, TeensHealth explains that you should try to avoid rubbing or itching your nose and suggests placing a small amount of a lubricant such as petroleum jelly inside each nostril, especially on and around the septum.


If you continue to experience ongoing nosebleeds and the symptoms seem severe, consult your health care provider in order to achieve an accurate diagnosis. Frequent nosebleeds can be an indication of a more serious problem. In addition, your doctor may be able to help alleviate your symptoms by simply changing your oxygen flow rate or frequency.

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