Where is local anesthetic injected for excision of thrombosed external hemorrhoids?

Updated: Aug 17, 2018
  • Author: Brett Wallace Lorber, MD, MPH, FACEP; Chief Editor: Erik D Schraga, MD  more...
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Answer

After cleaning the area with an alcohol swab, locally inject approximately 2-6 mL of local anesthetic (eg, lidocaine with epinephrine) at the base of the thrombosed hemorrhoid, then inject approximately 1-2 mL of the local anesthetic within the hemorrhoid (see the video below).

Excision of thrombosed external hemorrhoid. Injection of local anesthetic at hemorrhoid base and within hemorrhoid.

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