If you want to know more about the warning signs of colon cancer as the third most common cancer among men and women, if you want to know what signs and symptoms you should suspect colon cancer, we recommend reading the rest of the article.


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Colorectal cancer, also referred to by doctors as colon and rectal cancer, is a cancer that is common worldwide in both men and women. Although there are many people who do not yet know the warning signs, we are going to talk a little bit about this common cancer and Introduce you to the warning signs and symptoms that indicate the presence of colon cancer or cancer of the colon and rectum, and help you to recognize these symptoms early and see a doctor in a timely manner and seek immediate treatment, Because the diagnosis of colon cancer, if it is in the early stages, is important because it makes the response to treatment excellent in the affected person.


What are the warning signs of cancer?

When doctors talk about the warning signs of cancer, they mean that we should consult a doctor as soon as possible by recognizing one or more of these symptoms in ourselves or those around us.

In fact, these warning signs, whatever they may be, should let us know that there may be cancer behind these signs. By being aware of these symptoms and identifying them in a timely manner and referring to them in a timely manner, cancers can be diagnosed in the early stages and it can be treated well.

We must say that the presence of a symptom alone is not enough to definitively diagnose colon cancer, but when several symptoms appear together, it can be a warning sign of colorectal cancer. In these cases, little progress may be made to the tumor and has not occurred and the person has not noticed the occurrence of this tumor.

In most cases, the symptoms of colorectal cancer are silent, and the disease is diagnosed when a very large tumor extends beyond the bowel and covers the pelvis. So This is why the disease is usually not diagnosed in the early stages.

According to studies and researches, people who have been diagnosed with colon cancer have some early signs and symptoms, which are referred to as colon cancer warning signs, which we want to inform you about in this article.


What are the warning signs of colon cancer or colon cancer?

At this stage, we intend to categorize the warning signs of colon cancer into several groups, and after naming each category, briefly describe it and present the symptoms of each category below each description, so stay tuned.


  1. The first category of digestive problems

People who are diagnosed with colon and rectal cancer will find that they have often had a specific digestive problem when they look back and think about their past. Although one may be embarrassed to talk about problems, it is very important that the person discuss all the symptoms and digestive problems he or she encounters with his or her doctor in the first few steps without embarrassment. Among these symptoms can be mentioned the following:

Usually a person will have a combination of chronic diarrhea, constipation and bloating in the early stages of colorectal cancer.

A very important point is that most people who have been diagnosed with colon cancer state that they were told they had colitis or irritable bowel syndrome or other problems related to the colon before having cancer tests.


  1. The second category is general weakness and extreme tiredness:

People may be confused between the terms fatigue and extreme tiredness. Each of us may get tired after work and daily activities when we stop working. This fatigue is usually relieved by rest If fatigue is not relieved by rest and the person still feels tired, lethargic, weak and bruised after resting, it is called excessive fatigue.

In addition, in colon cancer, excessive fatigue and weakness can be a sign that a person also has anemia and heart disease or diabetes.


  1. The next category is abdominal muscle involvement with recurrent spasms:

People will inevitably experience abdominal pain throughout their lives, which will usually be uncomplicated and transient.

These people can develop abdominal pain due to irritable bowel syndrome and other inflammatory problems.

If you have abdominal pain that has just started and you have never experienced it before, and the pain is getting longer and worse, take it seriously and think of it as a warning sign of colorectal cancer and talk to your doctor.


  1. The next warning sign of rectal bleeding:

When blood comes out of the end of the colon or anus, it can be one of the most common signs of colon cancer if you see bright red blood on a paper towel after defecation or pink or red water in the toilet bowl after defecation, it can be a sign of rectal bleeding.

People often attribute rectal bleeding only to hemorrhoids and anal fissures, which can lead to delays in seeing a doctor. We have to say that this symptom can be a very important warning sign for colon cancer, so anyone who sees bleeding from the anus should see a doctor as soon as possible so that diagnostic procedures can be started quickly.


  1. The next warning sign is sudden weight loss:

Sudden weight loss without cause and without a special diet should be considered as a very important symptom for a variety of cancers, including colon cancer. Colorectal cancer can lead to sudden weight loss in a variety of ways.

A person may eat enough, but the disease can affect the health of intestinal membrane cells, change the way the body uses food, and prevent it from being absorbed.


What are the symptoms and manifestations of slow colon cancer?

What signs and symptoms people show following colon cancer depends on the following:

The first depends on the location of the cancer in the large intestine, The second factor is the signs and symptoms that a person exhibits depending on the rate of tumor and cancer progression.

And the third factor is whether the tumor and colorectal cancer have affected other organs and tissues of the body.


Risk factors for colon cancer

Doctors say one of the definite known factors that can increase the risk of colon cancer is genetics or heredity.

In some people, the cancer gene comes from their first-degree relatives, or over time, people undergo a series of changes or mutations in their genes that cause colon cancer. People can not interfere with these genetic resources.

The next factor is a person’s lifestyle, which increases the chances of developing bowel cancer, and issues such as obesity, inactivity, prolonged constipation, eating low-fiber foods, eating red meat and animal proteins that cause inflammation in the intestinal wall and affect bowel movements, Increases the risk of colon cancer.



Diagnosis of colorectal cancer or so-called colon cancer if done in the early stages, will have a very good outlook for people with this cancer. One way to diagnose colon cancer early is to use routine screening tests.

Screening tests are shared between countries around the world .However, each country is different in terms of prevalence and incidence between people and the average age of this cancer, and according to the common law, this test is required for people over forty years. Colon cancer screening methods are as follows:

The first screening test is a stool test. One of the most common screening tests for colon cancer is to test for occult blood in the stool. Stool sampling should be done once a year.

The second test for colon cancer screening is colonoscopy in people over 40 years of age which should be done every ten years. By performing this screening, possible lumps in the large intestine can be seen and diagnosed and examined in a timely manner. We should add that people with genetic syndromes, or those with a hereditary disease that includes gastrointestinal cancer, or people whose first-degree relatives have had colorectal cancer at an early age should start screening for colorectal cancer earlier.


Differences in the manifestations of colon cancer by location

The manifestations can be quite different depending on which part of the colon the colon cancer is in.

If the right side of the large intestine, called the ascending colon, has a tumor, the mass can become so large that it can cause problems such as bowel obstruction or pain due to the large amount of space in this area. In other words, tumors that form on the right side of the large intestine usually show up with their obstruction and become so large that they cause pain. If the tumor and cancer of the colon develop on the left side of the large intestine, that is, the end of the intestine and the area that eventually connects to the anus and the outlet of the intestine, in this area the tumors show most of their symptoms in the form of obstruction, defecation or non-defecation.

If you notice any of these symptoms, you should see a doctor immediately. A colonoscopy should be performed for the patient and a treatment plan should be adopted.



A person with colorectal cancer will be treated very successfully if their disease is diagnosed early.

Fortunately, screening methods are said to have significantly reduced the incidence of colorectal cancer worldwide over the past ten years. The set of successes in the diagnosis and treatment of colorectal cancer is due to advances in early colon cancer screening as well as in the treatment of colorectal cancer.

Recognizing the common signs and symptoms of colon cancer can save the lives of many people in the community, so we recommend that if you read this article, be sure to share it with your friends and relatives.

Treatment methods vary depending on the type of colorectal cancer, the location of the colorectal cancer, and the stage at which the tumor is located in terms of size and penetration into the intestinal tissues and access to surrounding tissues. Surgery or chemotherapy can be an effective way to treat colon cancer. Today, and in some cases, radiotherapy or immunotherapy is used.


Concluding remarks

Finally, it should be noted that sometimes many clinical manifestations and symptoms that can be associated with the possibility of colorectal malignancy occur in the individual, but unfortunately these people are ignored because of these warning signs, these manifestations are ignored.

However, this alarm is for dangerous conditions in their intestines, and if they had noticed these warnings and alarms in the early stages and had seen a doctor, the diagnosis and treatment of colon cancer would have saved their lives in the very early stages.

Therefore, we emphasize that it is very important to diagnose the signs and symptoms of colon cancer. If you notice these symptoms in yourself and others, you must discuss these issues with your doctor as soon as possible.