Eating soba constipation may be caused by a single diet, or may be caused by proctitis, intestinal obstruction and other diseases. 1. Diet single: Although, soba contains 10% dietary fiber, but the food contains a limited number of ingredients, if you often eat soba, resulting in a single diet, you are prone to constipation. 2. Proctitis: the causes of this disease include pathogenic microbial infections, inflammatory bowel disease, radiological injuries, foreign body injuries and so on. Typical symptoms of proctitis include abdominal pain, constipation, diarrhea, and a feeling of falling in the anus. 3. Intestinal obstruction: Studies have shown that the etiology of this disease includes intestinal adhesion, hernia, intussusception, intestinal torsion, etc. It may also be related to the loss of intestinal peristalsis, dysfunction of intestinal wall muscles, mesenteric vascular embolism and other factors. Patients will experience paroxysmal abdominal cramps, loss of appetite, constipation, vomiting and other symptoms. If eating soba constipation ruled out by physiological factors, it is necessary to go to the hospital in time to do the relevant examination to clarify the specific cause.