What are the reason for anal fissure and how it progress to pile and hemmorrids? Even patient haves reular fiber diet and good intake of water?

Cause and rx. Usually caused by pushing at stool. Increasing fiber in the diet cause more normal bms without pushing. I wouldtry it.
Fissure. Anal fissures are cuts, caused by increased pressure on the rectum, constipation, trauma, or hemorrhoids themselves. Since anal and rectal cancer can act the same way, see a board certified gastroenterologist.
They don't. Anal fissures do not become hemorrhoids. Fissures are tears, hemorrhoids are dilated veins.