Surgery for Grade IV / Strangulated Hemorrhoids

Grade IV hemorrhoids — permanently prolapsed and not reducible even manually — and strangulated hemorrhoids, where prolapsed tissue loses its blood supply, represent the most advanced end of hemorrhoidal disease, generally requiring surgery rather than office-based treatment.

Key takeaways

Grade IV hemorrhoids are permanently prolapsed outside the anus and can’t be pushed back in, even manually.
A strangulated hemorrhoid — prolapsed tissue that loses its blood supply — is a more urgent presentation that can require prompt surgical attention.
Office procedures generally aren’t sufficient for either presentation; surgery is the standard approach.

What makes grade IV different from earlier grades

Hemorrhoid grading reflects the degree of prolapse: grade I doesn’t prolapse, grade II prolapses with straining but reduces on its own, grade III prolapses and needs to be manually pushed back in, and grade IV is permanently prolapsed, unable to be reduced even manually. This most advanced stage generally doesn’t respond adequately to office-based procedures, which are designed for less advanced disease — surgery is the standard recommendation.

Strangulation — a distinct, more urgent concern

A strangulated hemorrhoid occurs when prolapsed tissue becomes trapped outside the anus and the surrounding sphincter muscle compresses it enough to cut off its blood supply. This causes significant pain and, if blood supply isn’t restored, can lead to tissue death (necrosis). This is generally considered a more urgent presentation than routine grade IV disease, sometimes requiring prompt surgical attention rather than a scheduled, elective approach.

Why office procedures generally aren’t appropriate here

The office-based procedures covered elsewhere on this site (banding, sclerotherapy, coagulation) are designed for less advanced disease and generally don’t provide adequate treatment for permanently prolapsed or strangulated tissue — surgical excision or another surgical approach (see Comparing surgical options) is the standard path for this level of disease.

What to expect if this describes your situation

A colorectal surgeon will assess urgency — routine surgical scheduling for stable grade IV disease, versus more urgent evaluation for a strangulated or acutely worsening presentation
Surgical technique choice follows the same general considerations covered in Comparing surgical options, though the more advanced disease stage may favor traditional excisional hemorrhoidectomy over some of the less invasive alternatives, which tend to have less established outcomes at this stage

When this needs urgent attention

Severe, worsening pain from prolapsed tissue that can’t be reduced
Signs of tissue necrosis (color change, worsening pain, signs of infection)
Any acute worsening of a previously stable grade IV presentation

Want the fuller picture of surgical options generally? See Comparing surgical options.

This page is for general education. Grade IV or strangulated hemorrhoids warrant evaluation by a colorectal surgeon to determine appropriate urgency and treatment.