Having a runny nose is bad enough. Whether due to sinusitis (a sinus infection) or rhinitis, it’s just no fun to be constantly reaching for a tissue. In some cases, and especially during seasons when pollen is higher—sinusitis, allergic, or non-allergic rhinitis can lead to a nosebleed. So you may be asking, “What causes a nosebleed?”The nose is rich with blood vessels lying just below the mucus membranes, so is extremely prone to bleeding when irritated.
Now, a nosebleed isn’t a common symptom of sinusitis or allergies, but some of the tactics our sinus center doctors use to staunch the flow of mucus can irritate the sinus lining, causing a nosebleed. Some of those tactics include:
- Decongestants. The over-use of decongestants can dry out the mucosal lining of the sinuses, leaving it prone to cracking and bleeding.
- Heavy blowing. Trying to clear your blocked sinuses with a good honk can sometimes rupture one of the small blood vessels.
- Self-inflicted “trauma” to the membranes. Let’s face it; it can be tempting to “help” (ok, pick) your nose a little when it’s clogged. But the risk of a heavy nosebleed should make this prospect less appealing.
If you have a sinus infection, or are taking decongestants for any reason, make sure to keep your nose well lubricated with steam, and your body well hydrated with plenty of water and tea. And if you find that nosebleeds are a common problem for you, give our sinus center doctors a call right away—you could have an undiagnosed problem, and we can help.
Contact us today and get help.
Frequently Asked Questions
Nosebleeds during sinus infections or allergies can be caused by irritation of the nasal mucosa, which contains many blood vessels close to the surface. Overuse of decongestants, heavy nose blowing, or nose picking can dry out or damage these blood vessels, leading to bleeding.
Overusing decongestants can excessively dry out the mucosal lining inside the nose, causing it to crack and bleed more easily. This dryness makes the blood vessels more fragile and prone to rupture, resulting in nosebleeds.
Blowing your nose forcefully can increase pressure inside the nasal passages, which may rupture small blood vessels in the mucosa. This can cause bleeding and worsen nasal irritation during sinus infections or allergy flare-ups.
No, picking your nose while congested can cause trauma to the nasal membranes and blood vessels, increasing the likelihood of nosebleeds. It's better to avoid this habit to prevent irritation and injury to sensitive tissues.
To prevent nosebleeds, keep your nasal passages well-lubricated by using steam inhalation and stay hydrated by drinking plenty of water and tea. Avoid overusing decongestants and refrain from aggressive nose blowing or picking.
If you experience frequent nosebleeds while managing sinus infections or allergies, it’s important to consult a sinus specialist. Frequent bleeding may indicate an underlying condition that requires professional diagnosis and treatment.