Bleeding pooping

Blood in stoll..or dalam bahasa kasar dia, bleeding while pooping/shitting and existence of blood in feces. I've had this thing for a long time now..i thought that it was nothing as it doesn't seem serious and the thing occurs rarely. but..for a couple of days now, i noticed that more blood is coming out while I was pooping n i thought "damn, whats goin on in there?" today, more blood came out than usual and I was a lil bit freaked out so I decided to do some searching and here's an article that I found:

Causes of Blood in Stool

Blood in the stool means there is bleeding somewhere in your digestive tract. Sometimes the amount of blood is so small that it can only be detected by a fecal occult test (a test to check for hidden blood in the stool).  At other times it may visible on toilet tissue or in the toilet after a bowel movement as bright red blood. Bleeding that occurs higher up in the digestive tract may make stool appear black and tarry.  

Possible causes of blood in stool include:

Diverticular disease. Diverticula are small pouches that project from the colonwall. Usually diverticula don't cause problems, but sometimes they can bleed or become infected.

Anal fissure . A small cut or tear in the tissue lining the anus similar to the cracks that occur in chapped lips or a paper cut. Fissures are often caused by passing a large, hard stool and can be painful.

Colitis . Inflammation of the colon. Among the more common causes are infections or inflammatory bowel disease.

Angiodysplasia. A condition in which fragile, abnormal blood vessels lead to bleeding. 

Peptic ulcers . An open sore in the lining of the stomach or duodenum, the upper end of the small intestine.  Many peptic ulcers are caused by infection with a bacterium called Helicobacter pylori (H. pylori). Long-term use or high doses of anti-inflammatory drugs such as aspirin, ibuprofen, and naproxen can also cause ulcers.

Polyps or cancer. Polyps are benign growths that can grow, bleed, and become cancerous. Colorectal cancer is the third most common cancer in the U.S. It often causes bleeding that is not noticeable with the naked eye.

Esophageal problems. Varicose veins of the esophagus or tears in the esophagus can lead to severe blood loss. 

A black, tarry stool is likely an ulcer or other problem in the upper part of the digestive tract. Bright red blood or maroon-colored stools usually indicate a problem in the lower part of the digestive tract such as hemorrhoids or diverticulitis.

As for the time being, mine is red blood and maroon-coloured stools..so that means there's a problem with my lower part of the digestive system.

I am afraid of what it might be..i don't want any of those..especially, CANCER. Maybe when I have free time, I'll go for a check up..