Blood in Stool and Urine: Should You Worry About Colon Cancer?

Blood in the stool, along with blood in the urine on the same day?

That day, my stool was hard and appeared golden yellow, but the toilet was filled with blood, and the toilet paper was also stained with blood.
I also noticed blood in my urine that day.
Later in the evening, the symptoms eased.
Now, on the second day after the incident, I continue to experience intermittent pain in my lower abdomen.
Should I be concerned that I have colon cancer?

Ting Ting, 20~29 year old female. Ask Date: 2020/11/29

Dr. Xu Kaixi reply Surgery

Blood in the stool or the presence of blood is considered an abnormal symptom.
Possible diagnoses range from common hemorrhoids to various gastrointestinal diseases.
Given your age, the likelihood of colorectal cancer is low; it is more probable that the bleeding is caused by hemorrhoids.
However, based on your description, in addition to the bloody stools, there are other gastrointestinal symptoms.
It is advisable for you to take the time to visit a hospital's surgical or gastroenterology department for further evaluation.

Reply Date: 2020/11/29

More Info

When it comes to the presence of blood in stool and urine, it can understandably cause significant concern, particularly regarding serious conditions such as colon cancer. However, it is essential to approach this situation with a comprehensive understanding of potential causes and the appropriate steps to take.

Firstly, the presence of blood in the stool can arise from various conditions, and while colon cancer is one of the possibilities, it is not the only explanation. Common causes of blood in the stool include hemorrhoids, anal fissures, diverticular disease, and inflammatory bowel diseases such as Crohn's disease or ulcerative colitis. Hemorrhoids, in particular, are a frequent cause of bright red blood on toilet paper or in the toilet bowl, especially if the stool is hard and requires straining during bowel movements.

In your case, you mentioned that your stool was hard and that you experienced abdominal pain. Hard stools can lead to tears in the anal lining, resulting in bleeding. This scenario is often more related to dietary factors, such as low fiber intake, dehydration, or changes in bowel habits, rather than a malignancy. It is also worth noting that the color of the blood can provide clues; bright red blood typically indicates a source closer to the anus, while darker blood may suggest bleeding from higher in the gastrointestinal tract.

Regarding the blood in your urine, this condition, known as hematuria, can also stem from various causes, including urinary tract infections, kidney stones, or other renal issues. The simultaneous occurrence of blood in both stool and urine could suggest a systemic issue, but it is crucial to evaluate each symptom independently.

Given your symptoms of persistent abdominal pain and the presence of blood, it is advisable to seek medical attention promptly. A healthcare provider may recommend a thorough evaluation, which could include a physical examination, laboratory tests (such as a complete blood count and urinalysis), and possibly imaging studies or endoscopic procedures (like a colonoscopy) to investigate the source of bleeding.

While your concern about colon cancer is valid, especially if there is a family history of colorectal cancer, it is essential to remember that the likelihood of cancer in younger individuals is relatively low. The risk increases with age and certain risk factors, including family history, genetic predispositions, and lifestyle factors.
In summary, while blood in the stool and urine can be alarming, it does not automatically indicate colon cancer. It is crucial to consider other potential causes and to consult with a healthcare professional for a proper diagnosis and management plan. Early intervention can lead to better outcomes, so do not hesitate to seek medical advice if your symptoms persist or worsen.

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