Is there any relation between blood in mucus from nose and covid?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Blood-tinged nasal mucus is commonly caused by upper respiratory infections, including COVID-19, the flu, colds, and sinus infections. When the nasal passages become inflamed or irritated from infection, small blood vessels near the surface can break easily, resulting in blood-streaked mucus. Frequent nose blowing, dryness, and congestion can make this more likely during illness.

If you're noticing blood in your nasal mucus and aren't sure what's causing it, taking a free, instant, online symptom check can help you understand possible causes based on your specific symptoms. It only takes a few minutes, requires no signup, and provides personalized guidance on whether you should monitor at home or seek medical care—helping you take the right next step with confidence.

Reviewed for medical accuracy: 07/15/2026

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Explanation

If you have COVID-19, it can be normal to notice a small amount of blood mixed with nasal mucus due to inflamed nasal tissues and fragile blood vessels. However, seeing blood mixed with nasal mucus is not limited to only COVID-19. Other conditions that may cause blood-tinged mucus include other viral infections like the flu or common cold, allergies, dry air, excessive nose blowing, or injury to the nasal passages. Sometimes, even vigorous nose picking can cause this symptom. A small amount of bleeding is not typically cause for concern but if you experience heavy bleeding or bleeding that does not stop, you should be evaluated by a healthcare professional. You can check your symptoms to better understand what might be causing your nasal bleeding and get personalized guidance on next steps.

(References)

Soloperto D, Dallari V, Caiazza N, Marchioni D. Hide and seek epistaxis after COVID-19 infection. Eur Ann Otorhinolaryngol Head Neck Dis. 2022 Aug;139(4):246-247. doi: 10.1016/j.anorl.2021.12.004. Epub 2022 Jan 21. PMID: 35115272; PMCID: PMC8776424.
D'Aguanno V, Ralli M, Greco A, de Vincentiis M. Clinical Recommendations for Epistaxis Management During the COVID-19 Pandemic. Otolaryngol Head Neck Surg. 2020 Jul;163(1):75-77. doi: 10.1177/0194599820926497. Epub 2020 May 5. PMID: 32366173.
Griesel M, Wagner C, Mikolajewska A, Stegemann M, Fichtner F, Metzendorf MI, Nair AA, Daniel J, Fischer AL, Skoetz N. Inhaled corticosteroids for the treatment of COVID-19. Cochrane Database Syst Rev. 2022 Mar 9;3(3):CD015125. doi: 10.1002/14651858.CD015125. PMID: 35262185; PMCID: PMC8905579.

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