Why do you have dried green boogers when are not even sick?

Dried green boogers are not necessarily a sign of illness. They are often caused by dehydration or allergies. When your body is dehydrated, the mucus in your nose can become thicker and drier, leading to the formation of boogers. Allergies can also cause the production of thicker mucus, which can lead to dried green boogers. In some cases, dried green boogers can also be a sign of a sinus infection, so it's important to see a doctor if you have persistent or severe symptoms.