Home » News & Facts » 10 Warning Signs of Colon Cancer You Shouldn’t Ignore

10 Warning Signs of Colon Cancer You Shouldn’t Ignore

1 of 3

Medical professionals often refer to colorectal cancer, which includes colon cancer that affects the large intestine and rectal cancer that affects the lower most part of the large intestine.

According to the American Cancer Society, 1 in 20 people are at a risk of developing colorectal cancer during their lifetime.

The exact cause of colorectal or bowel cancer is not known. However, it is believed to develop when healthy cells become abnormal and start growing in number and accumulate in the lining of the colon, forming polyps. Left untreated, polyps may become cancerous.


colon cancer diagram

Several factors increase your risk of developing colon and rectal cancer, including aging (above 50 years), some types of bowel diseases, family history, obesity, smoking, excessive alcohol intake, a sedentary lifestyle, Type 2 diabetes and regular intake of processed foods or red meats.

African-Americans are at a greater risk of colon cancer than people of other races.

As it can be difficult to treat colon cancer after it spreads to nearby areas, it is important to know what the early symptoms are. This can help you seek early treatment and give you a better chance in recovery.


warning signs of colon cancer

Here are the top 10 warning signs of colon cancer you shouldn’t ignore.

1. Constipation

Constipation is an important sign of cancer in the colon. A 2011 study published in the Asian Pacific Journal of Cancer Backention highlights the link between constipation and colorectal cancer risk.

An earlier 2004 study published in the European Journal of Cancer supported the hypothesis that constipation or laxative use increases the risk of colon cancer.

A tumor present at the far end of the colon can make it very difficult to eliminate waste products, thereby causing constipation.

If you persistently have fewer bowel movements per week, without any prior problem of constipation, consult your doctor to find out the exact cause.

2. Diarrhea

If you suffer from diarrhea for more than a couple of weeks, it may be an early symptom of colon cancer.


When a tumor partially obstructs the bowel, it can cause alternating constipation and diarrhea due to leakage of liquid stool.

You may also experience frequent gas, abdominal pain, nausea and vomiting. Plus, a tumor may irritate or narrow the lining of the intestine.

It is important to consult your doctor when you have diarrhea that lasts more than a few days, as it can lead to dehydration, drain your body of nutrients and signal other serious problems, such as cancer.

3. Blood in Stools

Most often, blood in the stool is due to piles (hemorrhoids), where the veins in the back passage become fragile and cause a little bleeding during a bowel movement. This type of bleeding is generally red.

However, if you notice dark red or black blood in your stool, it can be a sign of cancer, such as bowel, rectal or colon cancer. It can also be due to a stomach ulcer.

Whether bleeding is due to piles, a stomach ulcer or cancer, it’s important to get it checked by a doctor. Proper diagnosis is essential for appropriate treatment.

4. Constant Feeling of a Bowel Movement

If you have a constant feeling of urgently needing to have a bowel movement or to strain but no stool is passed, it is not a good sign. This feeling can occur even after having a bowel movement.

Changes in your pattern of bowel movements can be a sign of colon cancer. It can occur when a tumor blocks the bowel and prevents you from completely emptying your bowels.

If you persistently have the sensation of incomplete evacuation after a bowel movement, discuss the problem with your doctor.

5. Narrow Stools

Thin, narrow stools are also a warning of possible colon cancer. A tumor present in the left side of the colon obstructs the passageway and often leads to narrow stools.

Do not delay discussing any change in your stools with your doctor. Diverticulitis and anal cancer can also cause narrowing of the stools.

6. Tender Abdomen or Abdominal Pain

If your abdomen, especially the lower part, hurts or feels tender when touched, this can be an early indication of tumor growth in the digestive tract, colon or rectum. In fact, abdominal pain is common in people who are later diagnosed with colon cancer.

A tumor can cause a block in the colon, restricting blood flow. This leads to abdominal pain that can be severe. This pain also can indicate that the cancer has begun to spread to other organs.

If abdominal pain or tenderness persists for more than 2 to 3 days, consult your doctor for proper diagnosis.

10 Warning Signs of Colon Cancer You Shouldn’t Ignore was last modified: August 19th, 2017 by Top10HomeRemedies
1 of 3

14 thoughts on “10 Warning Signs of Colon Cancer You Shouldn’t Ignore”

  1. It was a very informative section which can help more people thank you very much keep up the good work for the glory of God

  2. I didn’t get a chance to warmly thank you until now for those who give us neat & tidy information, tips & recommendations on this site regarding our health.I found them very sensible and truthfull.I really learned a lot and made myself healthier than before.Every information I needed and searched for before have found them here,with accurate feed.Very warm thank you again and wish u a warm happy Xmas and new year to u all.God bless you!!

  3. I has stage 3 colon cancer and I can say that the very first warning sign, for most cancer is a constant fewer, this occurs cause your body is fighting against the cancer, like it would do, for say the flu. A constant low grade fever is the first sign that you should get tested, followed by fatigue.

  4. My husband also stage 3 colon cancer never had fever.. he had one person say you losing weight and another said your color is off go see a dr and a third gave him a bear hug and felt pain were his signs….

  5. Another symptom to watch for is indigestion & burping. My 36 year old daughter has been diagnosed with stage 4 colon cancer. None of the symptoms mentioned above. She is currently unergoing chemotherapy, this is the only option she has at this time. Along with good nutrition, juicing & several other natural herbs. She is responding well to the therapy.
    We would like to make an awarness of the connection of Gallbladder removal & Colon Cancer as well as Birthcontrol. Please consider getting checked out if you fit some of these commonarities. My Daughter had her Gallbladder removed almost 12 years ago and was also using birth control.
    Only Colon cancer in our family was an uncle who was diagnosed in his late 70s., , some breast cancer, BUT never someone only 36 years old and in great shape. She is currently an Officer in the US Navy, Nurse & in great shape!

    1. Sending positive vibes her way. I too had my gallbladder removed when I was just 20 and 3 mths pregnant with my eldest son. I was strong, healthy, a regular at the gym and pool and ate like a rabbit.

  6. I have been diagnosed with both familial adenomatous polypsis which is a hereditary bowel condition was just told I have diversiticulis.
    I am not obese,no longer smoke don’t have diabetes and I’m 2years shy of my 50th. I have to undergo a colonoscopy every year each time the doctor finds more polyps right through my colon. 11 was the last count. Fortunately at the moment they are benign. I’ve already been told I have a high risk for developing cancer. My dear Aunt passed away last year from bowel cancer and both my parents suffered the same fate of dying from cancer. My father died of lung cancer after giving up smoking 15 years before. My Mother,sister to my Aunt was riddled with it.
    It is as it is. K 🤔🙄

Leave a Reply