Colorectal Adenomas Are A Type Of Non-Cancerous Polyp, Or Growth, That Can Develop In The Lining Of The Large Intestine Or Rectum. They Are The Most Common Precursor To Colorectal Cancer, And Are Found In Around 10% Of People Aged 50 And Over. Colorectal Adenomas Can Vary In Size And Shape, And May Begin As A Single Growth Or Multiple Growths. They May Be Flat Or Raised, And May Contain Small Blood Vessels Or Glands. Colorectal Adenomas Are Typically Diagnosed With A Colonoscopy Or Sigmoidoscopy. During These Procedures, The Doctor Inserts A Flexible Tube With A Camera Into The Rectum, Allowing Them To View The Lining Of The Colon. If An Adenoma Is Found, It Can Often Be Removed During The Procedure. Risk Factors For Colorectal Adenomas Include A Diet High In Fat And Red Meat, Obesity, Smoking, Physical Inactivity, And Excessive Alcohol Consumption. People With A Family History Of Colorectal Cancer Or Adenomas Are Also At Increased Risk. Adenomas Can Be Prevented Through Regular Screening Tests, Such As A Colonoscopy Or Sigmoidoscopy. These Tests Allow Doctors To Identify And Remove Adenomas Before They Become Cancerous. Eating A Healthy Diet, Exercising Regularly, And Avoiding Smoking And Excessive Alcohol Consumption Can Also Help Reduce The Risk Of Colorectal Adenomas.