Rectal cancer is a common malignant tumor, second only to gastric cancer among gastrointestinal malignant tumors, and most believe that the occurrence of rectal cancer is related to food or genetics.
Rectal cancer develops between 30 and 60 years old, more men than women, and has a better prognosis if it can be detected early and treated timely. The cause of rectal cancer is not clear, and it is related to rectal polyps, chronic inflammation and genetic factors. According to the pathological changes can be divided into infiltrative, ulcerative and cauliflower type. Its metastatic routes are direct spread, lymphatic metastasis, hematogenous metastasis and peritoneal implantation. Currently, it has jumped to the second place in the list of cancers, so diet and lifestyle, are the bane of cancer. Because of the similarity of causes and symptoms, rectal cancer is usually mentioned together with colon cancer.
1. Blood in stool is one of the common symptoms of rectal cancer. Blood in stool is present in 50% of cases in the early stage of the disease, and the bleeding is small at the beginning, which is seen on the surface of stool, and becomes thick blood in stool after combined with infection.
2.In the case of chronic intestinal obstruction, the abdomen is distended, with hyperactive bowel sounds and paroxysmal colic.
3.In the advanced stage of systemic cachexia cancer, patients show loss of appetite, emaciation, weakness, anemia, jaundice, ascites, etc.
Change in bowel habit, bloody stool, pus-blood stool, urgency, constipation, diarrhea, etc., and gradually thin stool, and in the advanced stage, there are bowel obstruction, emaciation, and even cachexia.
Rectal finger examination.
About 80% of rectal cancer patients can be detected through rectal finger examination, and hard and uneven masses can be palpated; in advanced stage, narrowing of the intestinal cavity, fixed masses, and dirty pus and blood containing feces can be seen in the finger sleeve.
Proctoscopy.
The size and shape of the tumor can be seen and the interventional tissue can be taken directly for pathological examination.
Obstruction symptoms
The rectum is obstructed by cancer, with difficulty in defecation, less stool, abdominal pain and abdominal distension. In some cases, bowel pattern and hyperactive bowel sounds can be seen.
Rectal cancer is a classification of colorectal cancer, and now the incidence of rectal cancer is increasing. Therefore, many people pay more attention to the early symptoms of rectal cancer because many of them are in the middle or late stage of rectal cancer when they are discovered. However, even so, many people are still vague about the early symptoms of rectal cancer and often consult with them.
However, these conditions are often misdiagnosed as dysentery, enteritis, hemorrhoids, etc., which leads to further development of the disease and worsens the symptoms of blood in stool, and when rectal cancer is diagnosed, the best time for treatment is already missed.
Early symptoms of rectal cancer
1.Change of normal bowel habit, constipation, diarrhea;
2.Blood or mucus in stool;
3.Recent persistent abdominal flatulence or hidden pain;
4.Progressive anemia, wasting and weakness of unknown cause;
5.Masses can be palpated in the abdomen, etc.