Chest infections that keep coming back

Category: Lungs & Breathing · All lungs & breathing symptoms

What it can feel like

Chest infections that keep coming back means repeated episodes of bronchitis or pneumonia — several a year, infections that take weeks to clear, or infection returning in the same place. The pattern suggests something local in the lung, or something general in the body's defences, is helping infections take hold.

Possible causes

A symptom can have many causes, and most are not serious. The lists below group conditions this symptom can be associated with — common causes first. They are possibilities to discuss with a clinician, not a diagnosis.

Common causes

Recurrent infections can be associated with smoking, poorly controlled asthma, reflux with inhalation of stomach contents, and living or working around dusts and fumes.

Other possible causes

A repeated pattern can be associated with bronchiectasis (damaged, widened airways), an area of lung narrowed by a growth or inhaled object, immune deficiency, or conditions affecting swallowing that let food or fluid enter the airways.

Red flags — when to seek help promptly

Chest infections with coughing blood or weight loss
Infections returning repeatedly in the same part of the lung
Chest infections together with infections elsewhere — sinuses, skin, urine
A chest infection that is not clearing despite treatment

What a clinician may do

A clinician will map your infection history, examine your chest, and arrange a chest X-ray or CT scan, lung function tests and blood tests including immune levels. Sputum cultures, swallowing assessment or a camera examination of the airways follow the findings.

Related guides on MedicalVideos.com

Frequently asked questions

How many chest infections is too many?

More than a couple of treated chest infections a year in an adult, infections that take unusually long to clear, or pneumonia in the same spot twice — any of these patterns is worth investigating rather than simply repeating antibiotics.

What is bronchiectasis?

Bronchiectasis means some airways have become permanently widened and scarred, so mucus pools and infections recur. It is a common finding when recurrent chest infections are scanned, and management focuses on airway clearance and treating flare-ups early.

Related symptoms — Lungs & Breathing

Breathlessness Bringing up phlegm Cough Coughing up blood Noisy breathing Pain when breathing in

Browse the C section of the A–Z list or return to the Symptoms A–Z hub.

Please note: This page is educational information about a symptom. A symptom alone cannot diagnose any condition, and the causes listed here are possibilities, not a diagnosis. If you are worried about a symptom — especially one that is new, severe, getting worse or not going away — please see your own clinician, who can examine you and arrange tests. In an emergency, call your local emergency number.