Why does the skin around anus meet very painful when have loose bowels

Diarrhea refers to diarrhea, diarrhea around the anal skin will be very painful reasons generally related to frequent defecation, pH changes, acute anal fissure, etc.

1, frequent defecation

diarrhea when the frequency of defecation increases, and defecation may be more frequent and urgent than usual, easy to frequent friction and stimulation of the skin around the anus, easy to cause pain.

2, pH changes

diarrhea, intestinal digestive acid may increase, easy to cause acid-base imbalance, will cause stimulation of the anal nerve, resulting in local swelling, pain and other discomfort symptoms.

3, acute anal fissure

due to frequent defecation, the skin around the anus may be pulled, causing acute anal fissure occurs, so patients will appear around the anal skin pain phenomenon.