Is it normal for soft stools to be flat?

Flat stools are usually not normal. It may be related to hemorrhoids, colon tumors and so on.
The anus is a cylindrical structure, and the stool should be cylindrical during defecation, which can change when there are lesions in the anus.
1. Hemorrhoids: When patients suffer from hemorrhoids, it can lead to structural changes around the anus and abnormal defecation. Especially the internal hemorrhoids are more serious, the hemorrhoids are bigger, and the stool will be squeezed during defecation, resulting in deformation.
2. Colon tumor: when there are masses or tumors and other occupying lesions in the colon, it can lead to the intestinal contents becoming smaller, making the stool appear flat. When there is colon tumor, it will also be accompanied by the change of bowel habit at the same time.
When patients have abnormal bowel movement, they should go to the hospital for examination in time, so as to clarify the cause of the disease for treatment.