All of these are reasons to see a doctor.
Small round stool with blood.
Things like internal hemorrhoids anal fissures rectal polyps or rectal cancers can all do this said nelson.
Pebble poop is small pellet like stool and it is usually a sign of constipation.
While a small streak of blood may be due to irritation in your colon s surface lining significant blood could signal.
Small stool may mean that your diet is low in fiber or you may have constipation for another reason.
Blood in stool means there is bleeding somewhere in your digestive tract.
Hard stool can create irritation and micro tears in the intestinal lining that cause.
If you find blood in your stool either by itself on the toilet paper in the water or streaked in the stools this can indicate a bleeding source from the anal canal or a low rectal source.
Sometimes the amount of blood is so small that it can only be detected by a fecal occult test which checks for hidden.
If your stool is especially hard to pass it s not uncommon to see some streaking of blood present in the stool.
In some cases small stool may be a sign of a medical condition.