Iron supplements, which can cause constipation, burning pain, and black stools.

Cancer here may cause narrower stools and bright red blood in the stool.

Large doses of 30 grams per day and higher can cause loose stools and diarrhea.

Both can cause cramping, weight loss, bloody stools, and other health problems.

The disease usually strikes people from 20 to 40 years old, causing diarrhea, cramps and bloody stools.

However, many parents reported that teething can cause loose stools, colds, and ear infections.

Excessive sugar consumption or a sensitivity to anise oil may cause loose, green stools.

It can also cause dark urine and light-colored stools.

This in turn usually can cause bloody stools to occur.

Chlorophyllin may cause loose stools, but this should be a temporary effect.