Bloody boogers form when blood mixes with mucus in the nose and the mucus dries. Various causes may include nose-picking or ruptured vessels. The nose lining is delicate and rich in blood vessels, and ...

If you’re blowing your nose regularly, it’s hard not to notice your mucus—and what color it is. So it can also be alarming if you happen to spot yellow, brown, bloody, or green mucus in your used ...

Black mucus is rare. It can be the sign of a fungal infection, or exposure to pollutants such as coal, dust or cigarette ...

Mucus is a slippery, protective substance that keeps your airways, throat, and digestive tract moist, trapping and clearing out dust, allergens, and germs to help protect against irritation and ...

Mucus, also called phlegm, is the lubricating substance that lines the surface of your lungs, mouth, sinuses, stomach, intestines, and even eyes, according to the National Institutes of Health (NIH).

Crackling sounds in your nose may result from several conditions involving your sinuses. Treating the underlying cause can clear your sinuses and eliminate the cracking sounds. You may be concerned if ...

A dry, crusty booger lodged deep in your nose is hard to ignore. It can be annoying, uncomfortable, and hard to get out. Here, an ear, nose, and throat doctor shares the reasons why deep boogers form ...