A bronchiectasis flare up, or exacerbation, occurs when your symptoms suddenly worsen, often due to a bacterial infection or increased inflammation. Identifying these signs early is crucial so that you can start treatment, such as a rescue pack of antibiotics, to prevent further lung damage.
What we will discuss in this article
- Changes in phlegm colour, volume, and consistency
- Increased breathlessness and physical fatigue
- The significance of new or worsening chest pain
- General symptoms like fever and loss of appetite
- When to follow your personalized self management plan
Changes in phlegm and cough
One of the most reliable signs of a flare up is a change in your usual cough and phlegm production. For most people with bronchiectasis, some daily phlegm is normal. However, during an exacerbation, the mucus becomes a much better environment for bacteria to grow, leading to noticeable changes that you should monitor daily.
- Colour Change: Phlegm turning dark yellow, green, or brown.
- Volume: Producing significantly more phlegm than your usual daily amount.
- Consistency: The mucus becoming thicker, stickier, or harder to clear.
- Cough Frequency: Noticing that you are coughing much more often than your baseline.
Increased breathlessness and fatigue
During a flare up, the inflammation in your bronchial tubes increases, making them narrower. At the same time, the excess mucus can block smaller airways. This combination makes your lungs work harder, leading to a sudden decrease in your ability to perform daily tasks without feeling puffed out.
- Lower Stamina: Finding that you cannot walk as far as you normally do.
- Resting Breathlessness: Feeling short of breath even when sitting or lying down.
- Extreme Fatigue: A sudden, heavy exhaustion that does not improve with rest.
- Chest Tightness: A feeling of pressure or restriction across the chest.
Systemic signs of infection
Because a flare up often involves a bacterial infection, you may experience symptoms that affect your whole body, not just your chest. These systemic signs indicate that your immune system is working hard to fight off the pathogen and are a clear signal that medical intervention may be needed.
- Fever and Chills: Feeling hot, shivery, or having a documented high temperature.
- Loss of Appetite: Not feeling like eating or losing interest in food.
- General Malaise: Just feeling generally unwell or ‘flu-ish.’
- Increased Pulse: Feeling like your heart is racing even when you are resting.
| Symptom Category | Baseline (Normal) | Flare up (Warning) |
| Phlegm Colour | Clear, white, or pale yellow | Dark green, yellow, or brown |
| Phlegm Amount | 1 to 2 tablespoons daily | Significant increase or ‘doubling’ |
| Breathlessness | Only on heavy exertion | Occurs during light tasks or rest |
| Energy Levels | Normal for you | Intense, sudden exhaustion |
When to take action
Most patients with bronchiectasis in the UK are given a self management plan. This plan tells you exactly what to do when you notice these signs. If you have a rescue pack of antibiotics at home, the presence of two or more of the symptoms listed above is usually the trigger to start your medication.
- Check Your Plan: Review the specific instructions provided by your respiratory team.
- Sputum Sample: If possible, collect a phlegm sample before starting antibiotics.
- Contact Your GP: Inform your doctor or specialist nurse that you have started a flare up.
- Increase Clearance: Perform your airway clearance exercises more frequently during this time.
Summary
Identifying the early signs of a bronchiectasis flare up is the best way to protect your lungs from permanent damage. By watching for changes in your phlegm, monitoring your breathlessness, and recognizing systemic signs like fever, you can act quickly. Starting your treatment early helps to shorten the duration of the flare up and reduces the risk of needing a hospital admission.
If you experience severe sudden or worsening symptoms call 999 immediately.
How long does a typical flare up last?
With prompt antibiotic treatment and increased airway clearance, most flare ups begin to improve within three to five days, though full recovery can take two weeks.
Should I stop exercising during a flare up?
You should rest during the peak of an infection. Once your fever has gone, gentle movement can actually help you clear the infected mucus.
What if my phlegm changes colour but I feel fine?
A change in colour alone can sometimes happen without an infection, but if it persists for more than twenty four hours, you should contact your nurse.
Authority snapshot
This article was written by our Medical Content Team and reviewed by Dr. Stefan Petrov to ensure clinical accuracy. It outlines the signs of a respiratory exacerbation in accordance with UK clinical standards and NICE guidelines. Our goal is to provide factual information to help patients manage their condition proactively.
