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Prostate vs Colon Cancer: Differences

It is essential to know the difference between prostate cancer and colon cancer.

These two types of cancers are very different. It will be detected through prostate-specific antigen (PSA) tests or prostate biopsies if you have prostate cancer.

Colon cancer may be detected with a colonoscopy, CT scan, barium enema x-ray, or blood in stool test.

What is prostate cancer?

Men have a gland in their body called the prostate. The prostate gland surrounds the tube that carries urine out of the bladder. This gland also produces and stores fluid that helps to make semen. When there is uncontrolled growth, it’s called cancer because cells are not being controlled anymore.

Prostate cancer is cancer that many men in the United States get, and it starts when they don’t know. There are many types of cancers, but prostate cancer is the most common one in men. In 2018, 164,690 men will be diagnosed with prostate cancer, and 29,430 will die from prostate cancer. But some people will find out too late, and then they can’t do anything about it.

What does prostate cancer look like

What is colon cancer?

Cancer that starts in the large intestine is called colon cancer. The large intestine is the last part of your digestive tract.

People usually get colon cancer when they are old. Colon cancer can happen at any age, though, and it starts when there is a small noncancerous (benign) clump of cells called polyps. Over time some of these polyps can become colon cancers.

If you get colon cancer, there are many treatments. You can have surgery or radiation therapy. You can also take medicine like chemotherapy, targeted therapy, and immunotherapy.

Colon cancer is sometimes called colorectal cancer. This means it is a colon and rectal cancer. It starts in the rectum.

Prostate cancer vs colon

Here’s an image of both to show their difference in location.

diagram of the reproductive system including prostate

Prostate cancer Attribution By Cancer Research UK – Original email from CRUK, CC BY-SA 4.0,

diagram of the digestive tract including colon cancer and rectum cancer growth

Colon cancer By Blausen Medical Communications, Inc. – see ticket for details, CC BY 3.0,

The rectum is part of our large intestine (colon), part of our digestive system. In comparison, the prostate is part of the male reproductive system.

Colon cancer can lead to prostate cancer

Research showed that men who developed colorectal and prostate cancer at the same time were followed up to the end of 1995. They were identified from the Victorian Cancer Registry.

Then they were divided into groups by age and years of follow-up. For example, the cause of death was determined in those who had prostate cancer following colorectal cancer.

Men with prostate cancer were compared with men without prostate cancer who also had colorectal cancer. The stage of colorectal cancer was then compared in the two groups.

People who get colorectal cancer are more likely to get prostate cancer. Men under 65 are at the most risk.

Men who have had their first colorectal cancer are at higher risk of getting prostate cancer than men with second primary cancers. People with second primary prostate cancers are more likely to die from prostate cancer than colorectal cancer.

Younger men who have been diagnosed with colorectal cancer are at a higher risk of getting prostate cancer. Unfortunately, there is not enough evidence that screening for prostate cancer will help, but this should be thought about when deciding what to do in the long term.


The prostate and colon are different.

The confusion might stem from the rectum’s proximity to the prostate.

However, the prostate is part of the reproductive system, while the colon is part of the digestive system.

Research found that you’re likely to get prostate cancer if you’ve had colon cancer.

In any case, If you have any symptoms, talk to your doctor. If you are 50 or older, you should start getting screened for colon cancer and prostate.

18 Vital Things Men Must Know Before Visiting The Doctor
A Prostate Doctor Is Called?

Your doctor will know if there is a family history of prostate and colon cancer, and they will know what screening is best for you.

Boost your well-being by visiting our men’s health section. Find the best guide to set you on a path to fit and healthy you.

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