Cost Of Contact Lens Solutions. Don't forget about the cost of contact lens solutions to clean and disinfect your lenses. If you wear contacts on a daily wear basis and clean and disinfect them after each use, expect your annual cost for contact lens care solutions to be roughly $150 to $200.
The colon normally absorbs the majority of water in fecal material, leaving soft, solid stool. Dietary intake, infections and digestive disorders can lead to increased water in expelled feces, or loose stools. The nutrient content of ingested foods and intestinal infections often cause transient episodes of diarrhea.
So it makes sense that the most common reason of hard stools is irregularity of bowel movements causing constipation. To a smaller point, hard stools may be produced by insufficient fluid intake, as the colon is required to draw excess water from the stool.