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The main symptom of constipation and blood in stool is that the number of bowel movements is significantly reduced, once every 2-3 or days longer, irregular, dry and hard feces, often accompanied by a sense of difficulty in defecation, anal bleeding, bleeding accompanied by stool or not accompanied by the phenomenon.

Complications of constipation and blood

In anal and intestinal diseases, there are many kinds of diseases that cause constipation and blood, how to distinguish the symptoms of constipation and blood? Experts point out that the symptoms of constipation and blood in stool caused by different diseases are different.

(1) The symptoms of constipation and blood in stool caused by intestinal cancer. Its main symptom is blood in feces. If the cancer is located in the right half of colon, such as ileocecal part, ascending colon, hepatic flexure part of colon, it is usually not easy to see obvious bleeding, and positive fecal occult blood is the main symptom. If the cancer is located in the left half of the colon, the color of blood in stool is mostly bright red or dark red, attached to the surface of feces. If the bleeding is not much, and if the blood is retained in the intestinal lumen for too long due to constipation, the color of the blood will be black, and the blood will be mixed with feces.

Sigmoid colon cancer often manifests as constipation alternating with diarrhea, with blood, pus and mucus in stool. In rectal cancer, there is blood in stool or pus and blood stool, or mucus and blood stool with bloody secretion in feces.

(2) Intestinal polyps cause the symptom of constipation and blood in stool. Especially rectal polyp bleeding, its symptoms are mainly blood in the stool, usually not much, intermittent bleeding, color bright red, covered with fecal surface, can also be mixed with feces, or mixed with mucus and pus secretion. Rectal polyps often manifested as painless blood in the stool, usually small amount of bleeding, colon with larger polyps, can cause intussusception, lower abdominal cramps, constipation aggravated, and feces with blood.

(3) hemorrhoids cause constipation and blood in stool symptoms. Patients suffering from hemorrhoids, due to anal pain during defecation, fear of defecation often inhibit the urge to defecate, and gradually produce constipation, and constipation to a certain extent aggravate hemorrhoids. When the hemorrhoid nucleus is large, hemorrhoid mucous membrane tissue becomes thin, hard to defecate dry fecal matter is easy to rub through the hemorrhoid mucous membrane, causing blood in the stool. Blood in stool is a common symptom of internal hemorrhoids, but not every time you solve the stool will have blood in stool, generally dry stool is common, it is characterized by straining to defecate, blood discharged from the anus, the amount of bleeding varies, the blood is often attached to the surface of the stool, it can be feces with blood, blood on the handkerchiefs after the stool or a little drop and, in severe cases, the amount of bleeding is larger.

(4) anal fissure caused by constipation and blood symptoms. Constipation for a long time will cause anal fissure, and once suffering from anal fissure, constipation will be further aggravated, in the force of defecation, dry feces expansion of the anal canal, can make the small blood vessels of the anal canal tear and bleeding. It is characterized by a small amount of bleeding, or the surface of feces with blood, or when defecating blood dripping out, or after the handkerchief stained with blood. Another characteristic is that patients with anal fissure often have severe tearing anal pain, and the pain can last for a long time after defecation. When there is periodic severe anal pain caused by defecation with blood in the stool, anal fissure should be considered. The diagnosis can be confirmed by anal visualization.

(5) Intussusception causes constipation and blood in stool. Often mucous blood stool, jam-like, accompanied by abdominal pain, the abdomen can be found in the set of masses, easy to cause intestinal obstruction.

(6) Rectal ulcer bleeding caused by constipation blood symptoms. For the surface of the stool with blood and accompanied by pain in the anal region.

From the above, it can be seen that the symptoms of constipation and blood in the stool is not isolated, is triggered by other anus and intestinal diseases, therefore, experts reminded the patient, in order to treat constipation and blood in the stool, the first thing is to clarify the cause of the disease.

I hope my answer is helpful to you, there are any questions you can consult me again, I wish you good health.