Colonoscopy shows red blood in the intestine

Everyone should know that intestinal health issues are very important to us. Some people will diagnose through colonoscopy. After colonoscopy, red blood will be detected in the intestines. In this case, this is just a symptom and is not enough to cause disease. Further examination is needed to determine what caused it.

Basic symptoms

Abdominal pain, pain from the upper abdomen or around the umbilicus transfers to the right lower abdomen, with fixed tenderness in the right lower abdomen. After the inflammation extends to the serous layer, there is abdominal muscle tension and rebound pain.

Acute appendicitis

The appendix is ​​located at the junction of the small intestine and the large intestine, attached to the posterior and inner side of the cecum, about 5 to 7 cm long and less than 1 cm in diameter. The end of the appendix cavity is a blind end, and the proximal end is connected to the cecum. There is a semi-lunar mucosal wrinkle at the junction of the two, called the Gerlach valve. When the mucosa is not completely closed, food and feces can easily enter the cavity and cause inflammation. The causes of the disease are factors such as lumen obstruction, bacterial infection or nerve reflex spasm. According to the pathological changes of appendicitis, it can be divided into: simple appendicitis, in which the inflammation is relatively mild, with only congestion of the serosal layer and slight bleeding and ulcers in the mucosal layer; purulent appendicitis, in which the serosal layer is extremely congested and the mucosa is necrotic and suppurated; gangrenous appendicitis, in which all layers of the appendix are inflamed, necrotic, dark red in color, with erosion of the thin wall tissue, and is extremely easy to perforate. Appendicitis can be divided into acute and chronic. The symptoms of the two are similar, but the signs are more obvious in acute attacks. Acute appendicitis presents with:

①Abdominal pain. The pain in the upper abdomen or around the umbilicus moves to the right lower abdomen, with fixed tenderness in the right lower abdomen. After the inflammation spreads to the serous layer, there is abdominal muscle tension and rebound pain.

②Gastrointestinal symptoms. You experience symptoms such as nausea, vomiting, diarrhea, or constipation.

③Fever. The body temperature gradually rises to 37~38. Depending on the severity of the inflammation, acute appendicitis is treated surgically. When symptoms are mild and appendicitis is suspected, conservative treatment can be used, such as antibiotics, acupuncture, or Chinese medicine, but the recurrence rate is high.

⑵ Intestinal obstruction: Intestinal obstruction is a disorder of intestinal function that prevents the contents from passing smoothly.

① Intestinal obstruction is divided into:

A Mechanical obstruction. Patients with intestinal stenosis caused by various reasons and difficulty in passing food;

B Dynamic obstruction. Due to autonomic nervous system disorder, the intestines lose their normal ability to move, resulting in food retention;

C Hemodynamic obstruction. Caused by intestinal blood flow obstruction, mesenteric embolism, etc. According to the location of obstruction, it can be divided into high-level obstruction and low-level obstruction. The former is obstruction of the jejunum and upper ileum, and the latter is obstruction of the lower ileum and colon. According to the blood supply, it can be divided into: simple obstruction, normal blood supply to the intestinal wall and obstruction of the intestinal cavity; strangulated obstruction, both the intestinal cavity and blood supply are obstructed.