Overview
Damaged airways can't clear mucus, so germs grow and cause infections.
Daily airway clearance keeps lungs healthier.
Symptoms
Common signs:
- Daily cough with phlegm
- Cough with mucus most days
- Mucus or phlegm
Less common
- Chest infections
- Shortness of breath
When to get medical care
Call 911Coughing large amounts of blood.
Get care todayFever with more phlegm.
See a doctor soonDaily cough.
Causes
Past infections, immune problems.
Does it spread or run in families?
- It isn't contagious. You can't catch it from someone else.
Who is more likely to get it
- Past severe infections
- People with cystic fibrosis: The most common cause in young people
- People who had severe pneumonia or whooping cough: Higher risk
Possible complications
- Pneumonia: Repeated lung infections
- Coughing up blood (hemoptysis): From damaged airways
Diagnosis
A clinician asks about your symptoms and may order tests.
The exam
A physical exam.
Tests
Tests, if needed:
- CT scan:
Treatment
Treatment depends on the cause and how severe it is.
Self-care
- Do airway clearance daily
- Vaccines
Which doctor treats this
- Start with your primary care provider (family doctor or internist).
- They may send you to a pulmonologist (lung doctor).
Living with it
- Keep a simple diary of symptoms, triggers, and medicines to bring to visits.
- Bring a list of your medicines and questions to each visit.
- Don't smoke or vape, and avoid secondhand smoke.
- Ask about cardiac or pulmonary rehab programs.
- Get flu, COVID-19, and pneumonia vaccines as advised.
- Long-term illness can affect mood. Tell your doctor if you feel down or anxious.
Support groups and helplines
- American Lung Association: Lung HelpLine 1-800-586-4872 and Better Breathers support groups.
Back to school, work, or sports
- Most people can keep working or going to school.
- Ask about changes that help, like extra breaks or a flexible schedule. Workers may be covered by the ADA. Students may get a 504 plan.
Children, pregnancy, and older adults
- People with past severe pneumonia: Higher risk.
Pregnancy and breastfeeding
- If you're pregnant or planning to be, tell your prenatal provider about this condition.
- Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
- Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
- Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.
For caregivers
- Go to visits when you can and take notes.
- Keep a list of medicines, allergies, and doctors in one place.
- Learn the warning signs that need fast care.
- Take breaks and ask for help. Caregivers need care too.
Outlook
Treatment reduces flare-ups.
Getting ready for your visit
Bring a list of your symptoms and medicines.
What to bring
- A list of your medicines and supplements
- Notes on when symptoms started and what makes them better or worse
Questions to ask
- What's causing this?
- What treatment do you recommend?
- Which airway clearance method fits me?
Research studies
Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.
Sources
Last updated 2026-11-12.