What are the grades of haemorrhoids and the appropriate treatment options for each grade?

Hemorrhoid Grading and Treatment

Internal hemorrhoids are graded I through IV based on prolapse severity, with treatment escalating from conservative management for Grade I to surgical intervention for Grade IV disease.

Grading System for Internal Hemorrhoids

The Banov classification system, endorsed by the American Society of Colon and Rectal Surgeons, defines four grades based on prolapse characteristics 1, 2:

• Grade I: Hemorrhoids that bleed but do not prolapse beyond the anal canal 2
• Grade II: Hemorrhoids that prolapse with defecation but reduce spontaneously 2
• Grade III: Hemorrhoids that prolapse and require manual digital reduction 2
• Grade IV: Irreducible prolapsed hemorrhoids that cannot be reduced, typically including both internal and external components confluent from skin tag to inner anal canal; also includes acutely thrombosed, incarcerated internal hemorrhoids 1, 2

External Hemorrhoids

External hemorrhoids arise below the dentate line and typically remain asymptomatic unless thrombosis occurs, causing acute anal pain and a palpable perianal lump 1, 2

Treatment Algorithm by Grade

Grade I Hemorrhoids: Medical Management

Medical therapy is the most appropriate first-line treatment for Grade I hemorrhoids 2:

• Dietary modification: Adequate fiber and water intake forms the cornerstone of therapy 2, 3
• Fiber supplementation: Psyllium reduces hemorrhoidal bleeding and painful defecation 1
• Phlebotonics (e.g., flavonoids): Reduce bleeding, pain, and swelling, though symptom recurrence reaches 80% within 3-6 months after cessation 3
• Topical agents: Corticosteroids and analgesics manage perianal irritation from mucus discharge or fecal seepage, but prolonged use of potent corticosteroid preparations should be avoided due to potential harm 2

Grade II-III Hemorrhoids: Nonoperative Interventions

Nonoperative techniques are most appropriate for Grade II and III hemorrhoids, and are indicated when medical treatment of Grade I hemorrhoids fails 2:

Rubber Band Ligation (Preferred)

• First-line procedural treatment for persistent symptoms despite conservative therapies 3
• Resolves symptoms in 89% of patients 3
• Associated with the lowest recurrence rate among nonoperative techniques, though repeated banding is needed in up to 20% of cases 2, 3
• Causes relatively more discomfort than other techniques, but postbanding pain is usually minor 2
• Important caveat: Immunocompromised patients face increased risk for severe infection after rubber band ligation 2

Alternative Office-Based Procedures

When rubber band ligation is not suitable:

• Sclerotherapy: Efficacious short-term (weeks to months) in 70-85% of patients, but long-term remission occurs in only one-third; used only for Grade I-II hemorrhoids due to relatively high relapse rate 2, 3
• Infrared coagulation: Yields 70-80% success in reducing bleeding and prolapse 3
• Bipolar/diathermy coagulation: Available alternatives with similar outpatient applicability 2
• Cryotherapy: No longer recommended due to high complication rate 2

All nonoperative techniques can be performed in outpatients, may be repeated as needed, and require no anesthesia 2

Grade III-IV Hemorrhoids: Surgical Management

Hemorrhoidectomy should be recommended for symptomatic Grade III-IV hemorrhoids, mixed internal/external hemorrhoids, or when medical and nonoperative therapy fails 2:

Indications for Elective Hemorrhoidectomy 2:

1. Failure of medical and nonoperative therapy
2. Symptomatic third-degree, fourth-degree, or mixed internal and external hemorrhoids
3. Symptomatic hemorrhoids with concomitant anorectal condition requiring surgery
4. Patient preference after discussion of treatment options

Surgical Techniques

Conventional excisional hemorrhoidectomy (Milligan-Morgan or Ferguson) 3, 4:

• Most effective treatment with lowest recurrence rate (2-10%) 3, 4
• Gold-standard approach for Grade IV hemorrhoids 4
• Associated with significantly more pain and complications than nonoperative techniques, with recovery time of 9-14 days 3
• Should be reserved for a small minority of patients due to pain and complication profile 2

Stapled hemorrhoidopexy 2:

• Associated with significantly less pain than conventional hemorrhoidectomy 2
• Results appear comparable to conventional hemorrhoidectomy 2
• Important caveat: Small number of serious complications reported, and follow-up is relatively short 2

Hemorrhoidal artery ligation (HAL) 3:

• Patients experience less pain and recover more quickly 5
• May be useful for Grade II-III hemorrhoids 5
• Higher recurrence rate compared to conventional hemorrhoidectomy 3

Techniques to Avoid

• Manual anal dilatation: Not recommended due to risk of sphincter injury and incontinence 2
• Laser hemorrhoidectomy: No advantage over conventional techniques and more costly 2

Thrombosed External Hemorrhoids

If diagnosed early (within 72 hours), thrombosed external hemorrhoids are best managed by excision under local anesthesia in the office or clinic 2, 3:

• Outpatient clot evacuation within 72 hours associated with decreased pain and reduced risk of repeat thrombosis 3
• Excision not required for patients whose symptoms are resolving, as pain typically resolves after 7-10 days 2
• Patients presenting more than 72 hours after acute thrombosis should receive medical treatment (stool softeners, oral and topical analgesics such as 5% lidocaine) 3

Acutely Prolapsed, Incarcerated, and Thrombosed Hemorrhoids

Patients with acutely prolapsed, incarcerated, and thrombosed hemorrhoids should undergo either hemorrhoidectomy or excision of the external component with rubber band ligation of the internal hemorrhoids 2

Critical Clinical Considerations

Diagnostic Evaluation

• Hemorrhoids are optimally visualized using anoscopy 2
• All patients reporting rectal bleeding should undergo sigmoidoscopy 2
• Proximal colon evaluation by colonoscopy or air-contrast barium enema is indicated for atypical bleeding (dark blood, blood mixed in feces), guaiac-positive stools, anemia, or based on colorectal cancer risk factors 2
• Important pitfall: Anal pain is generally not associated with hemorrhoids unless thrombosis has occurred; anal pain suggests other pathology (up to 20% have concomitant anal fissures) 1

Treatment Selection Nuances

• Descriptive assessment sometimes more useful than symptom-based grading due to severity range within each grade 1
• Large Grade III hemorrhoids extending to the dentate line or with chronic epithelial changes may only be treatable with excision 1
• Smaller Grade III hemorrhoids may be readily treatable by nonoperative methods 1