Rectal Bleeding: Should I Worry About Colon Cancer at 16?

Fecal occult blood

On May 3rd, I experienced mild constipation, but it improved last week.
However, I feel that my stool doesn't look very healthy.
Today, I suddenly had stomach pain and urgently needed to use the bathroom.
After getting home, I noticed some red in the water, but it wasn't the entire stool that was red.
There was blood when I wiped.
I would like to ask the doctor if this means I have colon cancer.
I am only 16 years old.

Lin, 10~19 year old female. Ask Date: 2021/05/13

Dr. Chen Shidian reply Gastroenterology and Hepatology

A diagnosis should not be made in this manner; it is advisable to observe for a few more days, as it is likely a case of mild bleeding from the anal vessels.

Reply Date: 2021/05/13

More Info

When it comes to rectal bleeding, especially in a young individual like yourself at the age of 16, it's understandable to feel concerned about the possibility of colon cancer. However, it's important to note that the likelihood of developing colon cancer at such a young age is extremely low. Most cases of rectal bleeding in adolescents are not due to cancer but rather due to more benign conditions.

Based on your description, it seems you have experienced some constipation, abdominal pain, and noticed blood when wiping after a bowel movement. These symptoms can often be attributed to conditions such as hemorrhoids (piles), anal fissures, or even minor rectal bleeding from straining during bowel movements. Hemorrhoids are swollen blood vessels in the rectal area that can bleed, especially during bowel movements, and are quite common in individuals who experience constipation or straining.

Additionally, the presence of blood in the toilet water that is not mixed with the stool can also indicate that the source of bleeding is lower in the gastrointestinal tract, such as from the rectum or anus, rather than from higher up in the colon. This further supports the idea that your symptoms may not be indicative of colon cancer.

However, it is crucial to monitor your symptoms closely. If the bleeding persists, increases in frequency, or is accompanied by other concerning symptoms such as significant abdominal pain, changes in bowel habits, or weight loss, it would be wise to consult a healthcare professional. They may recommend a physical examination, and possibly a rectal examination, to assess for any visible issues such as hemorrhoids or fissures. In some cases, a referral to a gastroenterologist for further evaluation, including a colonoscopy, may be warranted, especially if there is a family history of gastrointestinal diseases or if symptoms do not resolve.

It's also worth noting that while family history can play a role in the risk of developing certain conditions, the age of onset for colon cancer is typically much later in life. The American Cancer Society recommends that average-risk individuals begin screening for colon cancer at age 45, but those with a family history may need to start earlier. Given that your family history includes a relative who had colon cancer, it is prudent to discuss this with your healthcare provider, who can help determine the appropriate screening schedule for you.

In summary, while your symptoms are understandably concerning, the likelihood of colon cancer at your age is very low. Focus on maintaining a healthy diet rich in fiber, staying hydrated, and managing any constipation. If symptoms persist or worsen, seek medical advice for a thorough evaluation. Remember, early intervention and proper assessment are key to addressing any health concerns effectively.

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