Lung cancer symptoms: what to look out for

Though there are usually no signs initially, symptoms such as wheezing and a persistent cough can emerge over time

For the first time since records began, the number of women diagnosed with lung cancer in the UK is to overtake the number of men this year, according to a Cancer Research UK analysis for the Guardian.

Experts say the earlier lung cancer is detected, the easier it is to treat. While there are usually no signs or symptoms in the earliest stages, they can emerge as the condition progresses.

A cough that does not go away after three weeks.

A longstanding cough that gets worse.

Recurring chest infections.

Coughing up blood.

An ache or pain when breathing or coughing.

Persistent breathlessness.

Persistent tiredness or lack of energy.

Loss of appetite or unexplained weight loss.

Changes in the appearance of your fingers, such as becoming more curved or their ends becoming larger (this is known as finger clubbing).

Difficulty swallowing or pain when swallowing.

Wheezing.

A hoarse voice.

Swelling of your face or neck.

Persistent chest or shoulder pain.