Long-term unformed stools are thin and soft with grooves may be caused by rectal polyps, hemorrhoids, intestinal tumors caused by other reasons.
1. Rectal polyps: belonging to a class of growth in the rectal mucosa surface of the heterogeneous growth of the tissue, mainly to elevated lesions, when the feces in the intestinal aggregation, will be subject to rectal polyps of extrusion, caused by the phenomenon of loose stools, the surface of the grooves.
2. Hemorrhoids: internal hemorrhoids patients hemorrhoids larger, in the process of defecation to make the anus thin, squeezing feces, causing the phenomenon of unshaped stools sparse and soft grooves, which can be accompanied by pain and blood in the stool.
3. Intestinal tumors: such as colon cancer, rectal cancer, etc., which are malignant tumors occurring in the mucous epithelium of rectum, in the middle and late stages of lesions, when the tumor volume is large, it will lead to the phenomenon of unshaped and soft stool with grooves.
If there is a change in the stool or accompanied by other symptoms, you should go to the hospital in time, and give targeted treatment after clarifying the cause.