Letter B
Breathing difficulty
Also known as: Dyspnea, Trouble breathing
Breathing difficulty symptom guide: what it can mean, possible causes, and when to seek care. Educational only.
Overview
Breathing difficulty can come from asthma, lung infection, anemia, or anxiety. It always deserves attention—especially if sudden. Do not delay emergency care if you cannot finish a sentence.
Possible causes
- Asthma or allergy
- Pneumonia or infection
- COVID-19 or severe cold
- Anemia
- Anxiety or panic
When to see a doctor
Call emergency services for sudden breathing trouble, blue lips, chest pain, or confusion.