The 3 most ‘undetectable’ cancers revealed – and how to spot them before it’s too late

Some cancers may not have any symptoms in the early stages.

This means they are very difficult to detect, making diagnosis and treatment much more difficult.

The initial symptoms are similar to those of other less serious health conditions


The initial symptoms are similar to those of other less serious health conditions

There are around 167,000 cancer deaths in the UK every year – that’s around 460 every day.

Accordingly Cancer Research UKDetecting the disease as early as possible saves lives.

“Cancer that is diagnosed at an early stage, when it is not too large and has not spread, is more likely to be treated successfully,” a spokesman said.

However, some cancers are easier to detect than others.

For example, many skin cancers can be detected by looking for changes in the skin – something you may notice on a daily basis.

But other forms of the disease can also arise and spread unnoticed 10 years or morea study found, making treatment more difficult.

It’s not that these cancers have no symptoms at all, but rather that the early signs are similar to those of other, less serious health conditions.

Here are three types of cancer that are notoriously difficult to detect in the early stages.

Colon cancer

Colon cancer often shows no or only minor symptoms in its early stages.

Doctors detect around 43,000 new cases in the UK every year, with around 268,000 Brits now living with the disease.

It is the second most common cause of cancer death in the country after lung cancer, claiming around 16,800 lives each year.

Accordingly Bowel Cancer UKSigns of the disease include bleeding from the anus or changes in your normal bowel habits, such as: E.g. fewer bowel movements, more frequent bowel movements or constipation.

Doctors can sometimes feel a lump in the rectum or abdomen, usually on the right side.

Feeling like you have to strain to poop even after defecating could also be a sign.

Rapid weight loss and abdominal or back pain can also indicate the disease.

Pancreatic cancer

Pancreatic cancer has the lowest survival rate of all common cancers in the UK – more than half of patients die within three months of diagnosis.

The pancreas is a large gland that is part of the digestive system and is located behind the stomach and under the liver.

According to the NHS, the five signs of the disease that could be confused with another condition or problem include persistent stomach pain, back pain, indigestion, unexplained weight loss and changes in bowel habits.

Other symptoms that may be more obvious include jaundice, difficulty swallowing, and vomiting.

Patients may also experience diabetes symptoms because pancreatic disease stops the production of insulin.

Ovarian cancer

Ovarian cancer is one of the most common forms of the disease in the UK.

Early detection is the key to fighting the silent killer.

The disease is often so-called because obvious symptoms often only develop at a more advanced stage, experts say Harvard Medical School say.

While we should always be aware of any new changes in our bodies, according to the NHS there are two warning symptoms of the disease that you may notice when you go to the toilet.

Both constipation and diarrhea are signs of the dreaded disease.

Accordingly Cancer Research UKDigestive problems may be due to the cancer having spread to the colon or because the cancer is putting pressure on the affected area.

According to the charity, ovarian cancer is the sixth most common cancer in the UK, with around 7,500 new cases every year.

Russell Falcon

Russell Falcon is a USTimesPost U.S. News Reporter based in London. His focus is on U.S. politics and the environment. He has covered climate change extensively, as well as healthcare and crime. Russell Falcon joined USTimesPost in 2023 from the Daily Express and previously worked for Chemist and Druggist and the Jewish Chronicle. He is a graduate of Cambridge University. Languages: English. You can get in touch with me by emailing

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