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Rectal bleeding is a telltale sign that young adults may have colorectal cancer, according to a new study.

Scientists found that rectal bleeding in younger adults increases the odds of a colorectal cancer diagnosis by 8.5 times.

The researchers arrived at their findings after examining 443 patients below 50 who underwent a colonoscopy at a university health system between 2021 and 2023.

Among the participants, 195 were found with early-onset colorectal cancer while the remaining subjects had clear colonoscopy findings.

The researchers said that the vast majority of the young cancer patients had a colonoscopy because of symptoms, not because of routine screenings.

They added that 70% of the cancer patients had no family history of the condition.

Furthermore, people who had smoked in the past were more than two times as prone to develop young-onset colorectal cancer as people who were non-smokers.

The researchers’ study was shared this week at a professional gathering. The findings have not been published in a peer-reviewed journal.

Bleeding from the Rectum Could Signal Bowel Cancer

The scientists said that their research demonstrates that individuals under 50 as well as healthcare providers should consider rectal bleeding as a important sign of colorectal cancer.

“A large number of the young-onset colorectal cancers that I encounter have no genetic predisposition,” said a specialist and lead researcher of the study. “This study adds weight to the question of who does or doesn’t warrant a colonoscopy: if you have a person below the recommended age with rectal bleeding, you should seriously consider a colonoscopy.”

Experts consulted who were not involved in the study concurred with this assessment.

“Young people with rectal bleeding should undergo a colonoscopy,” said a cancer specialist. “The most difficult point to communicate is that colorectal cancer is a condition of younger individuals.”

Another surgical oncologist stated that medical professionals should no longer presume that rectal bleeding in younger adults is caused by hemorrhoids.

“Colorectal cancer is a younger individual’s disease,” he said. “We can not dismiss symptoms such as rectal bleeding in young adults.”

A leading expert of early cancer detection research at a major cancer organization agrees.

“Physicians often minimize symptoms of colorectal cancer in younger adults, thinking that the chances of the symptoms being caused by colorectal cancer are remote because the individual is too young,” the specialist noted. “The research findings are not surprising. Ongoing rectal bleeding is abnormal and the cause should be immediately examined.”

A medical oncologist said that the research is an important warning to people below the age of 50.

“Don’t ignore any symptoms,” he said. “This research delivers this warning a bit more strongly.”

Colorectal Cancer Instances Increasing in Younger Individuals

A major cancer organization estimates there will be over 150,000 new cases of colorectal cancer identified in the United States this year.

Over 100,000 of those cases will be colon cancer, while just under fifty thousand will be rectum cancer.

The cases are split roughly equally between men and females.

Colorectal cancer is the third-leading cause of cancer deaths in males and the fourth primary reason in women in the United States. It’s the second most frequent most common cause of cancer fatalities in total. Colorectal cancer is projected to cause about fifty-three thousand deaths this year.

The cancer organization reports that the rate of people being diagnosed with colorectal cancer in the United States has been declining approximately 1% per year since the mid-1980s. They credit early screening and improvements in lifestyle habits.

Nevertheless, they note that the decrease is mostly occurring in older adults. In people below 50, the rate of colorectal cancer diagnosis rose over two percent per year between 2012 and 2021.

The death rate from colorectal cancer has also been declining moderately in the general public, but it has been rising somewhat in younger adults.

Actually, colon cancer is the leading cause of cancer death in adults between 20 to 49 in the United States.

An specialist said that people born around 1990 have twice the risk of colorectal cancer relative to people born around 1950.

“These risks are increasing and are persisting as people age, meaning we see more cases of colorectal cancer before and after age 45,” he explained.

Doctors are unsure what is driving the increase in early onset colorectal cancer, but nutrition, lack of physical activity, and obesity are among the suspected factors.

Another expert said there are also some theories that the overuse of medications as well as inflammation in the body may be contributing to drive up colorectal cancer incidence.

In addition, there has also been some research indicating that gut microbes may also be involved.

One specialist said that contact to this kind of bacteria as a child may cause colorectal cancer to develop 20 to 30 years down the road.

“We’re still trying to figure everything out,” he commented.

The Importance of Colorectal Cancer Tests Are Important

Healthcare professionals state that colorectal cancer is treatable if detected in its early stages. In advanced phases, it can be deadly.

They emphasize that’s why screenings are vital.

Current guidelines suggest males and females to begin being screened for colorectal cancer at age 45.

In addition, screenings may be necessary prior to age 45 if a person has a family history of colorectal cancer or has specific medical conditions such as inflammatory bowel disease (IBD).

It’s advised that colonoscopy screenings be done every 10 years for people with no family history of the condition and no growths found during the procedure. The interval between tests can be more frequent for different patients.

Colon examinations are generally considered the best screening for colorectal cancer, but other tests, such as home test kits, can additionally be used.

Besides rectal bleeding, other signs of colorectal cancer consist of:

• change in bowel habits
• diarrhea
• constipation
• cramping or abdominal pain
• unexpected weight loss

An expert adds that family history should not be overlooked.

“Individuals should know their family history of cancer and any identification of colorectal cancer among relatives should be talked about with their doctor, particularly if relatives were diagnosed at a young age,” he advised.

Ways to Reduce Your Chances of Colorectal Cancer

There are a number of ways a individual can reduce their likelihood of colorectal cancer. These include:

• Balanced nutrition: Eating patterns high in fat and deficient in dietary fiber are linked with an higher chance of colorectal cancer. Beef and processed foods have been demonstrated to raise the danger. Protein from poultry, fish, and legumes is considered a healthier option. Fiber-rich items, such as fruits, vegetables, and grains, may decrease the probability of colorectal cancer.
• Physical activity: A major health institute recommends two and a half hours of moderate-intensity exercise a week. {Regular|Consistent