2Why Does Snot Change Color?
If you have ever sneezed without tissue or had a runny nose, then you would notice that the snot would change its texture or color from time to time. When you are healthy, nasal discharge is basically black, green, clear, or other similar colors. The mucus can help protect the sinuses and nose from foreign particles like bacteria and dust. A change in color indicates that there might be something occurring outside or inside the body. Perhaps you might have an underlying condition, allergies, or a common cold. It is important to notice these changes and consult your doctor early. [2]
