Sclerotherapy
Sclerotherapy is used to treat small internal hemorrhoids.
The doctor injects a chemical into the vein within a hemorrhoid. The chemical causes the vein to harden and the hemorrhoid tissue to die. A scar forms in place of the hemorrhoid on the wall of the anal canal. The scar tissue, which is firm and thick, holds nearby tissue and veins in place so they don't bulge into the anal canal.
The procedure is performed in a doctor's office.
Bleeding from the anus occurs 7 to 10 days after the procedure, when the hemorrhoid falls off. Bleeding is usually slight and stops by itself.
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