Management of External Hemorrhoids
The management of external hemorrhoids should begin with conservative measures including dietary modifications (increased fiber and water intake) and lifestyle changes, with topical treatments for symptomatic relief, and surgical excision reserved for thrombosed hemorrhoids within 72 hours of symptom onset. 1, 2
Initial Assessment and Classification
- External hemorrhoids typically cause symptoms only when thrombosed, resulting in acute pain, and occasionally bleeding when local pressure causes erosion through the overlying skin 2, 3
- Anoscopy should be performed as part of the physical examination when feasible and well tolerated to rule out other causes of anorectal symptoms 1, 3
- Colonoscopy should be considered if there is concern for inflammatory bowel disease or cancer based on patient history or physical examination 1, 3
Conservative Management (First-Line)
- Non-operative management is recommended as first-line therapy for all hemorrhoids, including external hemorrhoids 1, 2
- Key components include:
Pharmacological Management
- Topical treatments for symptomatic relief include:
- Topical 0.3% nifedipine with 1.5% lidocaine ointment applied every 12 hours for two weeks (92% resolution rate) 2, 4
- Topical lidocaine for pain and itching relief 2, 4
- Short-term topical corticosteroids (≤7 days) to reduce local inflammation 2, 4
- Flavonoids to relieve symptoms 1, 4
- Topical muscle relaxants for pain relief 1, 4
Management of Thrombosed External Hemorrhoids
Early Presentation (within 72 hours)
- Surgical excision under local anesthesia is recommended for faster pain relief and reduced risk of recurrence 2, 4
- Simple incision and drainage of the thrombus alone is NOT recommended due to persistent bleeding and higher recurrence rates 1, 4
Later Presentation (>72 hours)
- Conservative management is preferred as the natural resolution process has begun 2, 4
- Continue with topical treatments and lifestyle modifications as described above 2, 4
Surgical Options for Refractory Cases
- Conventional excisional hemorrhoidectomy is the most effective treatment for persistent external hemorrhoids, with a low recurrence rate of 2-10% 2, 5
- Rubber band ligation has traditionally been avoided for external hemorrhoids due to pain concerns, but recent evidence suggests it may be an option for non-thrombosed external hemorrhoids when combined with local anesthesia 6
Important Considerations and Pitfalls
- Avoid long-term use (>7 days) of high-potency corticosteroid creams as they can cause thinning of perianal and anal mucosa 2, 4
- If symptoms worsen or fail to improve within 1-2 weeks, reassessment is recommended 2, 3
- Always rule out other causes of rectal bleeding before attributing symptoms to hemorrhoids 2, 5
- External hemorrhoids should not be confused with internal hemorrhoids, which originate above the dentate line and are managed differently 5, 7