The Average Variable Cost curve is never parallel to or as high as the Average Cost curve due to the existence of positive Average Fixed Costs at all levels of production; but the Average Variable Cost curve asymptotically approaches the Average Cost curve from below.
Included: Blood from constipation and anal fissure tear; Causes of Blood in Stool. Anal Fissure. If no diarrhea, most of these children have a small tear in the anus. This is called an anal fissure. Anal fissures usually are caused by passage of a large or hard stool. This is the cause in 90% of children with blood in the stools. Strep Skin Infection. A Strep skin infection around the anus can also cause blood-streaked stools. Bacterial Diarrhea. If also has bloody diarrhea, a gut bacterial ...
Ulcerative colitis can cause blood and mucus in the stool. Other symptoms include urgency in passing stool and passage of stools during the night time. Crohn's disease is less likely to cause passage of blood in the stool, but this may also occur in some cases.