Mucus Changing Color? Discover What Your Mucus Is Telling You.

When you’re sick, mucus can be embarrassing, irritating, frustrating, and just plain gross – especially when you’re suffering from a severe cold or flu, but it’s incredibly important for your body. Whether it’s thick or thin, or clear or green, find out what your mucus is trying to tell you and when it’s time to schedule a virtual visit with an MDLIVE board-certified doctor.

What Is Mucus, Anyway?

Mucus is a slippery, gelatinous goo produced by your mucous membranes. It lines your mouth, nose, throat, sinuses, lungs, and gastrointestinal tract. It’s made up of 95% water, with a mix of glycoproteins, proteoglycans, lipids, proteins, and DNA.

Wondering what it’s good for? A lot, actually. Mucus acts as a lubricant for your body and protects your nasal and sinus passages, lungs, and throat from drying out. It also has special antibodies and proteins that fight off germs. It even acts as a barrier and traps bacteria and allergens, like dust or pet dander, to prevent you from getting sick. Snot what you were expecting, was it? Sorry, we couldn’t resist.

Why Is My Body Producing So Much Mucus?

The average person produces more than a liter of mucus each day. When you’re feeling well, you probably don’t even notice that you’re constantly swallowing it (to the tune of about 38 ounces a day), but when you aren’t feeling well, all that mucus becomes a lot more noticeable.

Something as simple as eating spicy food

can trigger increased mucus production.

Allergic reactions and respiratory infections like colds, the flu, and sinus infections, can cause your body to produce even more mucus. Even something as simple as eating spicy food can trigger increased mucus production, and when you think about it, it makes sense. Mucus protects your body from outside threats, so when your body is experiencing something outside of the norm, like allergens or extra spice, your body puts up its defenses and amps up your mucus production.

Thin Or Thick Mucus – Does It Matter?

Whether you’re dealing with a runny nose, postnasal drip, thick rubber mucus from your nose, or coughing up clear mucus, the thickness of your snot can give doctors an insight about what’s ailing you.

For example, if your nose won’t stop running, it could be allergies or a cold. On the other hand, thick mucus can be caused by dehydration. Since mucus is mostly composed of water, if you aren’t adequately hydrated or live in a dry climate, you won’t secrete as much fluid as you would if you were well hydrated or live in a more humid place. Your mucus will also be thicker if you’re taking certain medications, like decongestants, or if you smoke. Just another good reason to kick that habit.

What Does The Color Of Your Mucus Mean?

When people think about mucus, the biggest concern is the color. We’ve all been brought up to believe that yellow mucus means you have an infection and need antibiotics, but that isn’t always true. You could also be suffering from a virus like the cold, which doesn’t require antibiotics.

Your mucus can come in a wide variety of colors, and they all mean something different. Take a closer look and see what your snot is trying to tell you.

Mucus colors

Stop The Spread

If you aren’t feeling good and your mucus isn’t clear, the last thing you want to do is spread it to your family, friends, and coworkers. Each time you cough or sneeze, your mucus can travel as far as six feet away from you.


  • Wash your hands frequently

  • Try not to touch your face

  • Clean any surfaces you regularly touch

  • Cover your mouth with a tissue or your elbow when you sneeze or cough

To protect yourself and others even more adopt these habits as part of your daily life.

They’re simple ways to reduce the spread of illnesses and keep yourself healthy.

When Should I See A Doctor?

When you need mucus relief, your first thought might be to call a doctor; however, if you don’t have an infection, over the counter solutions might be the place to start. Drink plenty of fluids like hot tea, soup, and water. Use a humidifier at night or steam up your shower for chest congestion relief. And stack your pillows to elevate your head while you sleep to promote drainage and reduce coughing. For expert

advice on what over the counter medications you should you take, or for a full treatment plan, MDLIVE is here with low-cost virtual visits that let you speak with a doctor anytime, anywhere within the United States.

If you’ve been sick for several days without getting better, schedule a virtual visit with an MDLIVE board-certified physician. You can talk to a doctor without leaving the comfort of your own home and avoid the germs in a doctor’s office or Urgent Care.

Your mucus is more important than you ever imagined. This viscous fluid protects you from allergens and illnesses, the color can tell you what’s going on inside your body, and the thickness could indicate how hydrated you are. So, pay attention to your mucus so it can help you stay healthy.

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