Seven Common Cancer Symptoms
One in two Britons born after 1960 will be diagnosed with some form of cancer during their lifetime1. Cancer Research UK states that women have the highest lifetime risk of breast, lung, and bowel cancers, with men having the highest lifetime risk of prostate, lung, and bowel cancers2.
The National Audit Office has estimated that there have been 740,000 less urgent cancer referrals since the start of lockdown — with as many as 60,000 people with missed cancers, but the majority remain undiagnosed, to put this figure into perspective, these people would fill a large football stadium. This is a sobering thought that brings into focus the importance of being aware of early cancer symptoms, knowing what to look out for, and what shouldn’t be ignored.
With all cancers, early diagnosis is a key factor in survival rates. Cancer screening is designed to detect cancers before symptoms appear, and when cancer is diagnosed early, treatment is often easier and more successful.
In this blog, we will explore seven typical cancer symptoms to be aware of, covering six common cancers in the UK.
1. Weight/Appetite loss
Half of the people who have cancer lose weight, it is often one of the first signs that people notice. If you have unexplained weight loss which cannot be attributed to changes in your diet, exercise or stress, then this can be an early sign of cancer or other health problems.
2. Fatigue
We all have times when we cannot keep our eyes open at our desks and a lot of us lead demanding lifestyles in which we do not get enough sleep, so it is understandable that you are going to feel tired. However, if you are suffering from unusual exhaustion that has been going on for a while, it could be due to other factors. Fatigue can be a red flag for an early symptom of cancer and should be investigated.
3. Unusual bleeding and problems peeing
If you experience any unusual vaginal bleeding, such as bleeding after sex or between periods, or new bleeding after you have been through the menopause, then these can indicate symptoms of cervical cancer.
If you are male and experience blood in your pee or semen, then this can be a symptom of prostate cancer.
If you are experiencing any of these symptoms, especially if they are new, unusual, and do not go away, it is important to get them checked out as soon as possible.
Common symptoms of cervical cancer can be found here, and common signs of prostate cancer can be found here.
4. Coughing up blood (phlegm with blood in it) and aches or pains when breathing or coughing
Coughing up blood or phlegm with blood spots in it is a symptom that should be addressed immediately. It could be a sign of lung cancer and signals that there may be another serious underlying medical condition, and you should get this symptom checked out by your GP.
Chest pain is a common symptom of lung cancer. If you are experiencing persistent chest pain that doesn’t go away when you lift something, cough, or laugh, you should see a doctor.
For further information on common lung cancer symptoms, click here.
5. Changes in your bowel habit
If you have experienced recent changes in your bowel habit that have lasted longer than six weeks, then you need to get these symptoms investigated. Signs and symptoms of early bowel cancer can include blood in your stools (poo), bleeding from your bottom, increased frequency of passing stools, or changes in stool consistency, such as diarrhoea or constipation. Anything that seems unusual or not your usual ‘normal’ should be further investigated to rule out a possible cancer diagnosis.
Take a look at our blog on ‘What are the symptoms of bowel cancer’ here.
6. Unexplained lumps and changes in your breasts
At Check4Cancer, we advocate being breast aware and encourage women to check their breasts regularly, so they become familiar with what their ‘normal’ is. This gets you into the habit of becoming familiar with your breasts, so if you notice anything that does not belong to you, it needs to get checked out to rule out a possible cancer diagnosis. Signs to look for include unusual changes in the breast shape, size or skin colour, any new lumps in the breast or armpit or any unusual changes to the nipple or nipple discharge.
You can view our handy guide to performing a breast self-examination in 6 steps here.
7. Changes to your moles
You may have some moles or dark patches on your skin that are flat or slightly raised. Usually, these will remain harmless for your whole life. However, moles or localised patches of normal skin that change in size, shape or colour over weeks or months in adult life need to be further investigated.
There are some obvious signs that a mole could be a melanoma, and you should get your moles checked by your GP or a skin cancer specialist if you notice any of the following skin changes:
- Changing shape, particularly if it has an irregular outline
- Changing colour, getting darker, becoming patchy or multi-shaded
- An existing mole getting bigger or a new mole growing quickly
- If a mole starts to itch or become painful
- If a mole is bleeding, becoming crusty and/or looks inflamed
Take a look at our guide on how to spot early signs of skin cancer with simple skin checks here.
Early detection and screening for cancer has never been so important. Check4Cancer offers a range of cancer screening tests which cover the six most common cancers in the UK, which are breast, bowel, cervical, lung, prostate and skin cancers here.
References
1,2 https://www.cancerresearchuk.org/health-professional/cancer-statistics/risk#heading-Zero

Professor Gordon Wishart
Chief Medical Officer
Professor Gordon Wishart is the founder, Chief Medical Officer and CEO of Check4Cancer, a leading early cancer detection and cancer prevention company. In 2016 Check4Cancer launched rapid access, streamlined and audited diagnostic pathways for breast and skin cancer to the insured and self-pay markets, leading to the award of “Diagnostic Provider of the Year” at the annual Health Investor Awards in 2018. In late 2017, Check4Cancer launched the first worldwide breast cancer risk test (MyBreastRisk) to combine genetic, family history and lifestyle risk factors to underpin a risk-stratified breast screening programme. As the former Director of the Cambridge Breast Unit from 2005-2010, and current Professor of Cancer Surgery at Anglia Ruskin School of Medicine since 2008, he has a strong track record in clinical research and modernisation of cancer diagnosis and treatment, with more than 100 peer-reviewed papers in scientific journals. In 2010 he led a team of clinicians and scientists that developed the PREDICT breast cancer treatment and survival model, now used worldwide.
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