Constipation, diarrhea, fatigue, weight loss, black stools, and low hemoglobin may be signs of advanced colorectal cancer (colorectal cancer, or CRC). Candidate of Medical Sciences Natalya Pashchenko, an oncologist at the Molecular Diagnostic Center CMD Ramenskoye Central Epidemiological Research Institute at Rospotrebnadzor, told the portal: “Passion”.
Pashchenko noted that symptoms of colorectal cancer may include: weight loss, fatigue, periodic constipation or diarrhea, crampy abdominal pain, decreased hemoglobin levels or increased ESR.
“All are characteristic of other malignant and benign tumors. Periodic constipation or diarrhea and crampy abdominal pain may be symptoms of colitis. “The presence of subtle symptoms requires a comprehensive examination, and this examination should in principle be performed on any healthy person, even in the absence of the described symptoms,” explained the doctor.
Moreover, all these symptoms appear in the later stages, when the tumor grows and blocks the intestinal lumen. Screening tests can detect cancer in its early stages. It can be prescribed by a doctor to healthy people who do not show symptoms. But colorectal cancer also has more specific symptoms.
“A relatively obvious symptom of CRC is gastrointestinal bleeding. It can come from the upper gastrointestinal tract (GIT) and present as tarry stools (black, liquid stools). This symptomatology is associated with gastric ulcers, stomach cancer, and cancer of the small intestine or ascending colon.” It is characteristic of bleeding and requires urgent hospitalization, examination (fibrogastroscopy, colonoscopy) and urgent surgical treatment to clarify the source of bleeding,” Pashchenko said.
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