Crohn disease is one of the two types of inflammatory bowel disease that affects the small intestine, large intestine, stomach, esophagus, mouth, and anus. It mainly affects the ileum, which is a part of small intestine and caecum, which is a part of the large intestine. It is a chronic inflammatory condition of the gastrointestinal tract. This disease can affect people of any age, but primarily, it affects young adults. Gastrointestinal tract plays an essential role in the body, and it includes many organs between the mouth and the anus. These organs play a role in transporting food to the body. Food passes to the stomach through the esophagus and enters the small intestine. At this point, most of the nutrients are absorbed, and the food reaches the colon or the large intestine. The colon absorbs the excess water and the salt from the waste and converts the solid waste into a stool. It is then excreted through the anus. When inflammation occurs, all the functions are affected and leads to Crohn’s disease.
Symptoms of Crohn’s disease
- Blood and mucus in the faeces
Causes of Crohn’s disease
The exact cause of the Crohn’s disease is not known yet but there are some factors that are known to contribute to the development of the Crohn’s disease.
1. Genetics - Genetic factors are said to be the obvious cause of Crohn’s disease. According to studies, many people who have this disease have a family history of this disorder.
2. Environmental factors - There is evidence that suggests that Crohn’s disease can be a result of several environmental factors such as dietary habits and smoking. Studies indicate that people who smoke have high chances of having this disease than those who do not smoke.
3. Immune system - An Impaired immune system is an important factor that contributes to the inflammation of the gastrointestinal tract. A failed response of the immune system causes inflammation.
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Types of Crohn’s disease
1. Ileocolitis - It is the most common type of Crohn’s disease, and it causes inflammation in the colon and the ileum, which is the part of the small intestine. It is characterized by symptoms such as cramping, undescribed weight loss, diarrhea, and the pain in the abdomen.
2. Ileitis - This type of Crohn's disease only affects ileum. Pain and diarrhea are the most common symptom of this type of Crohn's disease.
3. Gastroduodenal Crohn's disease - This type of Crohn’s disease is an inflammation in the stomach and the duodenum. Most of the people with this form of Crohn’s disease also experience inflammation in the ileum. Stomach ulcer, a stomach infection, and gastroesophageal reflux disease are some of the symptoms of this form.
4. Jejunoileitis - This form of Crohn's disease is an inflammation in the jejunum and the ileum which are the middle and the end part of the small intestines. According to the study, most of the people having jejunoileitis have inflammation in the other parts of the digestive tract. This is a serious type and can show symptoms outside the digestive tract.
5. Crohn’s (granulomatous) colitis - This type of Crohn’s disease can cause many complications and it causes inflammation in the colon. It can cause symptoms like rectal bleeding, diarrhea, and people with Crohn’s colitis are at high risk of developing prostate cancer.
Complications associated with Crohn’s disease
Fistula affects a large number of people having Crohn’s disease. Crohn disease often leads to the formation of the fistula which are the abnormal connection between the bowel and other organs. It can drain pus or a foul discharging smell. People with this disease experiences symptoms like abdominal pain, diarrhea, fever, nausea, vomiting, and weight loss. Some of the common types of fistula include
- Enteroenteric Fistula - When fistula develops between two segments of bowel.
- Rectovaginal - When fistula develops between the bowel and the vagina.
- Enterovesicular - When fistula develops between the bowel and the bladder.
- Enterocutaneous - When fistula develops between the bowel and the skin.
- Perianal Fistula - When it affects the areas around the anus.
2. Intestinal stricture
An intestinal stricture is a very common complication of Crohn’s disease, and it is the narrowing of the intestines and make it difficult for the food to pass through that area. In case of severe intestinal stricture, there can be a complete blockage, and hence no food or fluid can pass through the affected area. Inflammation caused by the Crohn’s disease leads to an occurrence of the build-up of scars in the walls of the intestine. Constipation, vomiting, abdominal pain, bloating, and cramps are some of the symptoms of the intestinal stricture.
The abscess is another complication of Crohn’s disease. It is a condition which occurs when inflammation affects the deep wall of the intestine and leads to an infection. This infection causes pus, and this collection of pus is known as the abscess. Pain and fever are common symptoms of an abscess.
4. Perforated bowel
Perforation bowel is a condition which develops when the inflammation due to the Crohn’s disease affects the walls of the intestines to such an extent that it forms a hole in the wall. Fever and irregular heartbeat are common symptoms of this problem.
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Annie is the oldest writer at Cheap Medicine Shop and is the subject and publishing expert. She has a graduate degree in medicines along with a diploma in creative writing.