What is rectal cancer?

Rectal cancer is a condition in which malignant (cancerous) cells form in the rectum's tissues, says the best rectal cancer doctor in Kolkata. 


The rectum is the last portion of the large intestine. The rectum's function is to hold feces until they are expelled from the body.


One's medical history can influence the risk of developing rectal cancer. This condition is diagnosed using tests that examine the rectum and colon.

 

rectal cancer doctor in kolkata

 

Causes

Rectal cancer typically develops over time. Doctors are unsure of what exactly causes it.


Changes (mutations) in the DNA of rectal cells cause the cells to multiply and grow uncontrollably, resulting in rectal cancer, says the expert of rectal cancer treatment in Kolkata.


Certain factors can increase the risk of developing rectal cancer, such as:


• Older age


• A history of colon or rectal cancer in the family


• Rectal polyp (fleshy, abnormal growth on the rectum lining)


• Inflammatory bowel diseases


• Hereditary syndromes


• Lynch syndrome


• Familial adenomatous polyposis (FAP)


• A diet deficient in fruits and vegetables


• A high-fat diet (particularly animal fat)


• Insufficient physical activity


• Smoking


• Alcohol consumption


• Previous cancer radiation therapy


• Human papillomavirus (HPV) infection

What are the signs of rectal cancer?

According to the best rectal cancer doctor in Kolkata, early signs and symptoms of rectal cancer may include:


• Blood in the feces (most common)


• Alteration in bowel habits (such as diarrhea, constipation, or increased bowel movements in a day)


• Narrow stool (due to the tumour obstructing the passage of stool)


• The sensation that the bowel does not empty


Patients may experience the following symptoms as their rectal cancer progresses and spreads to other organs:


• Abdominal pain


• Unusual weight loss


• Weakness


• Fatigue


Blood in the stool and a change in usual bowel habits are usually the main symptoms that point to rectal cancer, especially in the elderly. The patient should see their doctor to find out if rectal cancer is causing these symptoms, says the expert of rectal cancer treatment in Kolkata.