Blood in Snot

Have you ever examined your mucus after blowing your nose? The body has various ways of signaling what's happening inside, and mucus is one of them. If you find blood in your snot, it may be from COVID, a dry nasal passage, or a mild bacterial or viral infection.

What Does Normal Snot Look Like?

Normal mucus is clear to white. It turns yellow or green due to a virus, bacterial infection, or allergy — though color alone can't tell you which, only that the body is fighting something off.

Blood in Snot

Red or brown snot indicates blood, while black snot is usually dust or dirt. Bloody snot can result from frequent nose-blowing or breathing dry air; stuffy sinus cavities, if not cared for, can also become infected.

Why Does Mucus Change Color?

Yellow or green mucus signals an infection — the color comes from neutrophils (white blood cells) the immune system sends to fight it off, not from bacteria directly. It's also possible to have an infection with clear mucus, especially alongside congestion, facial pressure, or fever. Red or brown tints usually come from blood, most often from vessels just inside the nostril, and are typically not concerning in small amounts — larger volumes warrant a doctor's attention.

How to Deal With Excess Snot, With or Without Blood

• Rinse your nose with water daily, morning and night, to clear mucus and keep membranes moist; a saline nasal spray can help during the day.
• Drink plenty of water — adequate hydration keeps mucus thin and loose.
• Try steam — a hot shower or a bowl of hot water with a towel over your head, starting at a safe distance to avoid burns.
• Use a humidifier at home, kept clean and free of bacteria and mold.
• Keep your head elevated with pillows or a wedge during sleep, since mucus accumulates in the sinuses when lying flat.
• Blow your nose gently, one nostril at a time, since a forced blow can irritate the nasal passage and push bacteria-laden mucus back into the sinuses.

Conclusion

If you have a stuffy nose or blood in your snot, don't panic — reach out to the pulmonologists at Pulmonary Medical Consultants in Tomball at (281) 357-1300.