Cancers can have a range of symptoms and warning signs with some being more well known than others.
While it's not likely that everyone will know all of the warning signs, of which there are more than 200, it is useful to keep an eye out for less common symptoms.
Awareness could help people catch the condition out early on, which could increase chances of successful treatment, reports the Express.
One type of cancer that can be particularly dangerous is lung cancer - and changes appearing in the face may be a warning for the condition, according to health bodies.
From puffiness to swelling on the face, there are some key lung cancer symptoms that you should look out for on yourself and those close to you.
Cancer symptoms that appear on the face
An entry published on the health website Reynolds Cancer Support House outlines cancer symptoms women are “most likely to ignore".
The health body continues: “Some patients with lung cancer report noticing puffiness, swelling, or redness in the face.
“The explanation for this is that small cell lung tumours commonly block blood vessels in the chest, preventing blood from flowing freely from the head and face.”
These changes are deemed a “common sign” of lung carcinoma, but they can also occur with several other types of cancer.
Carcinoid tumours, for example, are neuroendocrine tumours that grow specifically in neuroendocrine cells.
These are in charge of transmitting signals through the release of hormones to help the body function.
When the cells become plagued with cancer, symptoms will include hot, red facial flushing, diarrhoea and wheezing.
Research suggests facial flushing is a result of cardioid syndrome, which is induced by too many hormone-like substances being released into the blood.
Research into the psychological impact of these changes has shown they have a considerable effect.
It is important not to let any drastic bodily changes go untreated by an expert, as screening tests can help detect malignancies in the early stages.
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