Primary Care

Can boogers tell me when I’m sick?

Young woman blowing her nose with a tissue at home

02/02/2025

Boogers ― also known as snot, mucus or nose goblins ― are a natural and essential part of the respiratory system. Made up of air particles, dust and secretions from our sinuses and nasal passages, these sticky helpers serve a crucial role in keeping us healthy.

 

By Ojha Shashowt, MD, Family Medicine Resident, Nuvance Health Medical Practice

 

The main function of boogers is to clean and moisturize the nose. They also defend us from dangerous particles and bacteria in our environment. Beyond their seemingly gross reputation, boogers work very hard to protect us from getting sick.

 

 

How boogers protect our bodies and prevent us from getting sick

 

Boogers are like the secret agents of our nostrils. They’re always on a mission to protect us from viruses, bacteria and everything else that doesn’t belong in our body. 

 

Without boogers, our nasal passages would be vulnerable to dryness, irritation and allergens.

 

What does the color and texture of boogers mean?

 

Sometimes, changes in boogers can even serve as early warning signs that something isn’t quite right with our health.

 

You might wonder what unhealthy boogers look like. The two types of signals are changes in color and/or texture. These can change depending on different factors such as infections, dry air, allergies, etc. Being aware of these changes can provide vital clues about our body’s health.

 

Clear boogers vs. green or yellow boogers

 

Clear boogers are typically a sign of nasal passages in good shape. They are made up of water and other secretions that help to keep the nasal cavity moist.

 

Green or yellow boogers can sometimes (not always) indicate an infection, such as a sinus infection or a common cold. This is due to the presence of white blood cells, which are sent to fight off infection. These may also have a thicker consistency and be tougher to blow out of the nose.

 

Chunky vs. watery boogers

 

Chunky and sticky boogers are often linked to dry air or sinus congestion. When we have inflammation of the sinuses, it can cause congestion in the nasal passage and make breathing difficult.

 

Watery boogers are commonly associated with allergies or the onset of a cold. Allergies can cause the nasal passages to produce more mucus to flush out the allergen. Colds can cause inflammation in the nasal passages, leading to an increase in mucus production.

 

   

 

Ways to breathe easier when your nose is stuffy

 

Whether you’re experiencing nasal discomfort from dry air, a cold or allergies, there are several things you can do to get relief.

 

Here are ways to keep your nose happy and healthy when it is stuffy:

  • Use a humidifier to add moisture to the air and prevent your nasal passages from drying out.

 

 

  • Saline sprays and decongestants can help rinse away allergens and reduce swelling and mucus buildup. 

 

  • Drink plenty of water to maintain moisture in your mucus. Aim to drink half your body weight in ounces daily. Carry a reusable water bottle with you to make it easier to stay hydrated while on the go.

 

  • Inhaling steam from a hot shower or bowl can help ease congestion and loosen mucus.

 

  • Use tissues when blowing your nose. Try not to blow your nose too hard to avoid getting a nosebleed. 

 

  • Don’t pick your nose! Not only does this irritate your nostrils, but it spreads germs and can make you sick.

 

 

Boogers, no matter the color or consistency, are not always a direct indicator of an underlying problem. However, if you do have oddly shaped or colored boogers along with other symptoms such as a fever, headaches or difficulty breathing, it’s a good idea to see your primary care doctor to help determine the cause and provide appropriate treatment.

 

The bottom line: Boogers are a vital part of your body’s defense system, protecting you from harmful particles and signaling potential health issues. By understanding what the different colors and textures of your boogers mean, practicing good hygiene and seeking medical care when necessary, you can keep your respiratory system functioning at its best!