Learn which tests confirm a csf leak. A constant runny nose may be something more serious like a brain fluid leak If you have yellow liquid coming out of nose, you might have sinus infection
Anatomy of the nose
But it might also have other possible causes
Thicker yellow mucus, sometimes just from one side of the nose
When yellow fluid is a red flag cerebrospinal fluid (csf) leak yes, itβs rareβbut worth mentioning In some cases, yellow or clear fluid leaking from the nose could be cerebrospinal fluid This is the fluid that cushions your brain and spinal cord Wondering what yellow snot means
Learn what causes yellow mucus, when to worry, and the best ways to get rid of it and breathe easier. If your nasal discharge is any color other than clear, it could be a sign of an infection Learn more about what yellow, green, brown, black, and red snot mean. A viral infection that leads to congestion, runny nose, and yellow or green mucus
When the sinuses become inflamed and infected, the body produces yellow or green discharge
Environmental allergens like pollen or dust can trigger your immune system, leading to yellow discharge as a reaction.
