Can You Have Colon Cancer For Years And Not Know It?

Does colon cancer show up in blood work?

Blood tests.

No blood test can tell you if you have colon cancer.

But your doctor may test your blood for clues about your overall health, such as kidney and liver function tests.

Your doctor may also test your blood for a chemical sometimes produced by colon cancers (carcinoembryonic antigen, or CEA)..

What are the symptoms of stage 2 colon cancer?

SymptomsA persistent change in your bowel habits, including diarrhea or constipation or a change in the consistency of your stool.Rectal bleeding or blood in your stool.Persistent abdominal discomfort, such as cramps, gas or pain.A feeling that your bowel doesn’t empty completely.Weakness or fatigue.Unexplained weight loss.

How long does it take to develop colon cancer?

Colon cancers develop from precancerous polyps that grow larger and eventually transform into cancer. It is believed to take about 10 years for a small precancerous polyp to grow into cancer.

What can mimic colon cancer?

Other conditions such as irritable bowel syndrome (spastic colon), ulcerative colitis, Crohn’s disease, diverticulosis, and peptic ulcer disease can have symptoms that mimic colorectal cancer. Colorectal cancer can be present for several years before symptoms develop.

What are the signs that you should have a colonoscopy?

How to Identify the Warning Signs of Colorectal CancerAbdominal pains.Bloating.Chronic fatigue.Blood in stools.Narrow/thin stools.Diarrhea.Constipation.A change in bowel habits.More items…•

How long can bowel cancer go undetected?

The development of a bowel cancer from a polyp may take between five and ten years, and early on there may be no symptoms at all. The most common symptoms are bleeding from the bowel, a change in bowel habit, such as unusual episodes of diarrhoea or constipation and an increase in the amount of mucus in the stool.

Can you have colon cancer and not know it?

Many people diagnosed with colon cancer experience no symptoms, and this is one reason why the disease is often diagnosed in later stages.

What does skinny poop mean?

However in some cases, narrow stools — especially if pencil thin — may be a sign of narrowing or obstruction of the colon due to colon cancer. Irritable bowel syndrome (IBS) is another condition that may cause changes in the size of your stools, so that they’re smaller, larger or narrower than usual.

What are the signs of stage 4 colon cancer?

SymptomsBlood (usually dark red or black) in the stool.Constipation and diarrhea. These can also be symptoms of other, less serious conditions. … Long, thin, pencil-like stools. … Fatigue and weakness. … Abdominal pain or bloating. … Unexplained weight loss. … Nausea and vomiting, which may happen if the tumor causes an obstruction.

Is lots of gas a sign of cancer?

Cramps may also be associated with advanced colon cancer: As the tumor grows through the colon or bleeds, it may irritate the lining of the abdomen. Gas and Bloating: While it’s normal to pass gas up to 23 times per day, excessive gas and bloating can be a sign of colon cancer.

Can colon cancer go undetected for years?

Because early stages of colon cancer can go unnoticed for years, screening is important for early detection. It is generally recommended that individuals at average risk for colon cancer receive a screening test every 10 years.

What does your stool look like if you have colon cancer?

Blood from in the bowel becomes dark red or black and can make poop stools look like tar. Such poop needs to be investigated further. Poop which is bright red may be a sign of colon cancer. Red poop may be seen in cancers of the lower intestine.

What are symptoms of stage 1 colon cancer?

These symptoms can include:change in bowel habits.blood in stool or rectal bleeding.abdominal pain.fatigue.unexplained weight loss.

Can you smell colon cancer?

Cancer raises polyamine levels, and they do have a distinct odor. Researchers in this study also found that cancer-specific chemicals might circulate throughout the body. They hope to use this knowledge to advance early detection of colorectal cancer.

Where do you feel pain if you have colon cancer?

Colon cancer can cause both constipation and diarrhea. A person may feel cramp-like pain in the stomach. The stool may be streaked or mixed with blood.