Asthma is a condition in which your airways narrow and swell and may produce extra mucus.

Breathlessness is a symptom that is felt when a person’s magnitude of breathing feels disproportionate to the amount of effort they are expending.

Bronchiectasis is a long-term condition where the airways of the lungs become abnormally widened, leading to a build-up of excess mucus that can make the lungs more vulnerable to infection.

A chest infection is an infection of the lungs or large airways. Some chest infections are mild and clear up on their own, but others can be severe and life threatening.

Chronic obstructive pulmonary disease (COPD) is the name for a group of lung conditions that cause breathing difficulties, including emphysema and chronic bronchitis.

COVID-19 is an illness that can affect your lungs and airways. It’s caused by a virus called coronavirus.

A cough is a reflex action to clear your airways of mucus and irritants such as dust or smoke. It’s rarely a sign of anything serious.

Tuberculosis (TB) is a bacterial infection spread through inhaling tiny droplets from the coughs or sneezes of an infected person.

Haemoptysis refers to coughing up blood from the lungs or bronchial tubes.

Sarcoidosis is a rare condition that causes small patches of red and swollen tissue, called granulomas, to develop in the organs of the body. It usually affects the lungs and skin.

Respiratory tract infections (RTIs) can affect the sinuses, throat, airways or lungs. Most RTIs get better without treatment, but sometimes you may need to seek additional care.

Pulmonary hypertension is high blood pressure in the blood vessels that supply the lungs (pulmonary arteries).

A pulmonary embolism is a blocked blood vessel in your lungs which can be life-threatening if not treated quickly.

There are several types of pleural diseases, including: Pleurisy, Pleural Effusion, Pneumothorax and Hemothorax.

Interstitial lung disease (ILD) is an umbrella term used for a large group of diseases that cause scarring (fibrosis) of the lungs. The scarring causes stiffness in the lungs which makes it difficult to breathe.