A grain of stool is a symptom of constipation, the human body is prone to cause anal and intestinal diseases and other hazards.
Constipation patients are easy to retain stool in the rectum for too long, water is over-absorbed leading to dry and hard stool, in the rectal pressure under the action of the formation of a grain of feces from the anus to discharge.
Constipation is harmful to the human body, because constipation is difficult to defecate and other symptoms, the stool will be left in the intestinal tract for too long, under the action of intestinal bacteria can produce a variety of harmful substances continue to stimulate the mucosa of the intestinal tract, the serious may also induce intestinal obstruction, rectal cancer and other diseases, the dry knot of feces in the process of defecation may also be on the anus to cause damage.
In addition, due to constipation patients each squatting toilet defecation time is longer, the pressure on the anus is greater, but also easy to cause hemorrhoids and other diseases.