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What are Internal Hemorrhoids?

Painless rectal bleeding or the prolapse of anal tissue is commonly associated with symptomatic internal hemorrhoids. Prolapse occurs when hemorrhoidal tissue from inside the anal canal comes out during a bowel movement or when wiping. This tissue often returns inside the anus on its own, or it can be gently pushed back in by the patient. Symptoms usually develop slowly over time and are often intermittent.

Classification of Internal Hemorrhoids

Internal hemorrhoids are graded based on the degree of prolapse, which helps guide treatment:

  • Grade 1: No prolapse
  • Grade 2: Prolapse that returns inside on its own
  • Grade 3: Prolapse that must be pushed back in by the patient
  • Grade 4: Prolapse that cannot be pushed back in (often painful)

Common Symptoms

Bleeding from internal hemorrhoids is typically bright red and may appear on toilet paper, drip into the toilet bowl, or be streaked on the stool. Not every patient experiences significant bleeding—some may have prolapse as their primary or only symptom. Prolapsing tissue can cause:

  • Irritation or itching around the anus
  • Mucus discharge
  • Difficulty cleaning after a bowel movement
  • A sensation that stool is “stuck” at the anus
  • Patients who have internal hemorrhoids without symptoms do not require treatment.

What Causes Symptomatic Hemorrhoids?

Most factors linked to hemorrhoidal symptoms involve increased abdominal pressure that is transmitted to the anal region. These include:

  • Straining during bowel movements
  • Constipation
  • Diarrhoea
  • Pregnancy
  • Irregular bowel habits
Over time, these factors may contribute to prolapse of internal hemorrhoids or enlargement/thrombosis of external hemorrhoids.

Examination

After reviewing your symptoms and personal and family medical history, your doctor will perform an office examination. This typically includes:

  • Visual inspection of the anal area
  • Digital rectal exam (placing a gloved finger into the rectum)
  • Anoscopy, where a small, finger-sized instrument is inserted into the anus to directly view the hemorrhoidal tissue
Depending on your symptoms, your doctor may also recommend evaluating the colon to rule out polyps, cancers, or other causes of bleeding:
  • Flexible sigmoidoscopy views the lower half of the colon
  • Colonoscopy usually allows visualization of the entire colon

Non-Surgical Treatment of Internal Hemorrhoids

A wide range of treatments are available for symptomatic internal hemorrhoids. The appropriate approach depends on the grade of the hemorrhoids and the severity of symptoms. Many patients improve with dietary and lifestyle modifications alone. If symptoms fail to respond, or if they are severe at the outset, office-based or surgical procedures may be recommended.

    1. Dietary & Lifestyle Changes
Diet and bowel habits are the cornerstone of hemorrhoid management—whether or not procedural treatment is needed. Key goals include:
  • Normalizing bowel function
  • Avoiding straining
  • Preventing both hard stools and diarrhea
The goal is to achieve a soft, bulky, easily cleaned stool that reduces irritation to the anal canal.
    Fiber Intake
Constipation and abnormal bowel habits (straining, prolonged sitting, frequent stools) contribute significantly to hemorrhoidal symptoms. Recommendations include:
  • 20–35 grams of fiber per day from food (fruits, vegetables, whole grains)
  • Daily fiber supplement (1–2 times per day), available as powders, chewables, or capsules
    Hydration
Adequate fluids are important to help fiber work effectively. Typical recommendation:
  • 8–10 glasses of fluid daily
Note:Caffeinated beverages and alcohol do not count,
    Bowel Habits
Patients should be counseled to:
  • Avoid straining
  • Avoid prolonged time on the toilet
  • Respond promptly to the urge to defecate (do not suppress repeatedly)
These behavioral steps have been associated with lower rates of hemorrhoidal symptoms.
    Exercise
Regular physical activity supports healthy bowel function and reduces constipation.
    2. Medical Treatment
Medical therapy includes various topical agents in the form of creams, ointments, foams, and suppositories. Most are over-the-counter, while some require a prescription. Common components include:
  • Hydrocortisone (anti-inflammatory)
  • Phenylephrine (vasoconstrictor)
  • Pramoxine(anesthetic)
  • Witch hazel (astringent)
Evidence is limited for many of these agents, but they may provide short-term symptom relief. For example, a combined hydrocortisone acetate 1% and pramoxine hydrochloride 1% foam has been shown to improve pain, itching, and swelling during late pregnancy. Important: Prolonged use of topical steroids or anesthetics may cause allergic reactions, irritation, or sensitization, so use should be monitored by a provider.
    3. Phlebotonics
Phlebotonics are a heterogeneous group of agents that improve venous tone, lymphatic drainage, and capillary resistance. They include:
  • Plant-based flavonoids
  • Synthetic compounds (e.g., calcium dobesilate)
They may be used for acute or chronic hemorrhoidal disease and can help reduce bleeding, discharge, and swelling.

Office-Based Treatment for Internal Hemorrhoids

Several effective office-based therapies exist for treating internal hemorrhoids. These procedures are not designed for external hemorrhoids and are typically used when dietary and lifestyle changes do not provide enough relief. The most commonly performed procedures are:

  • Rubber Band Ligation (RBL)
  • Injection Sclerotherapy
  • Infrared Coagulation (IRC)
  • These options are best suited for Grade I–II and some Grade III internal hemorrhoids.

Internal Hemorrhoid Options

Rubber Band Ligation (RBL)

Rubber Band Ligation (RBL)

Rubber band ligation is considered the most effective office-based treatment for internal hemorrhoids. It is commonly used for:

  • Grade I and II internal hemorrhoids
  • Selected Grade III hemorrhoids that do not respond to conservative measures
How It Works During anoscopy, a specialized device grasps the excess internal hemorrhoid tissue and places a small rubber band at its base. The band:
  • Cuts off blood supply to the hemorrhoid
  • Causes the tissue to slough off within 1–10 days
  • Promotes fixation of mucosa to submucosa, improving prolapse
Candidates & Considerations
  • Patients on blood thinners such as warfarin, heparin, or clopidogrel may not be candidates
  • Typically 1–2 bands can be placed per session
  • Multiple sessions may be required
Recovery & Effectiveness
  • Most patients have no significant downtime
  • A mild pressure or ache for 1–3 days is common and usually relieved by acetaminophen
  • Symptom improvement is often long-lasting if dietary and lifestyle changes continue

Elastic Band Ligation

Elastic Band Ligation

If symptoms recur, repeat RBL can be performed. Surgical hemorrhoidectomy remains an option for refractory cases. Safety & Complications RBL has been shown to have:

  • Lower complication rates
  • Lower cost
  • Similar or improved outcomes compared to excisional hemorrhoidectomy or hemorrhoid artery ligation
Complications are uncommon, but may include:
  • Pain
  • Bleeding
  • Infection
A rare but severe complication is perineal sepsis, presenting with:
  • Fever
  • Severe anal pain
  • Urinary difficulty
  • Fecal incontinence
  • Nausea/vomiting

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Injection Sclerotherapy

Sclerotherapy involves injecting a sclerosing agent into the hemorrhoidal tissue to produce:

  • Inflammation
  • Fibrosis
  • Scar fixation of mucosa to submucosa
Features
  • Quick and often painless
  • May require multiple short sessions
  • Can be considered in some patients on anticoagulants, depending on clinical judgment
Outcomes & Complications Reported symptom outcomes include:
  • Post-procedure pain: 24%–49%
  • Post-procedure bleeding: 0.9%–6%
  • Recurrent bleeding: 1.5%–29%
  • Recurrent prolapse: ~16%

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Infrared Coagulation (IRC)

Infrared coagulation is another office-based option for:

  • Grade I
  • Grade II
  • Selected Grade III internal hemorrhoids
How It Works During anoscopy:
  • A small probe delivers infrared radiation
  • The tissue heats, becomes inflamed, sloughs, and scars
  • This reduces excess prolapsing tissue
Features
  • Quick and generally well tolerated
  • Few complications
  • Multiple treatments may be required
Outcomes & Complications Reported complication ranges include:
  • Post-procedure pain: 16%–100%
  • Post-procedure bleeding: 15%–44%

Excisional Hemorrhoidectomy

Excisional Hemorrhoidectomy

    Excisional Hemorrhoidectomy (EH), or surgical removal of hemorrhoidal tissue, is typically offered to select patients with external hemorrhoids or symptomatic combined internal and external hemorrhoids (grades III–IV). It remains an effective option for patients who fail, cannot tolerate, or are not candidates for office-based procedures, or for those with significant external disease.
    Both open and closed excisional hemorrhoidectomy techniques may be used, and surgery can be performed with a variety of surgical devices.
  • Hemorrhoidectomy is performed in an operating room and may be done under sedation, general anesthesia, or spinal anesthesia (similar to an epidural during childbirth).
  • Serious complications after surgical hemorrhoidectomy are rare. The most common complication is postoperative hemorrhage. Acute urinary retention occurs in approximately 1% to 15% of cases and is the most frequent cause of delayed discharge in ambulatory settings. Long-term complications may include anal stricture and fecal incontinence.

Stapled Hemorrhoidectomy

Stapled Hemorrhoidectomy

    Stapled hemorrhoidopexy is not routinely recommended as a first-line surgical treatment for internal hemorrhoids due to its marginal efficacy and significant risk profile.
  • SH employs a circular stapling device to excise a ring of submucosa proximal to the dentate line, creating a mucosa-to-mucosa anastomosis that elevates the anal cushions and interrupts feeding vessels. Although effective for prolapsing internal hemorrhoids, it does not address external hemorrhoids.
  • SH is also associated with several unique complications, including rectovaginal fistulas, staple line bleeding, and staple line strictures.

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Doppler-Guided Hemorrhoidal Artery Ligation (HAL)

    Doppler-guided hemorrhoidal artery ligation may be used for patients with internal hemorrhoids. HAL uses an anoscope equipped with a Doppler probe to identify hemorrhoidal arteries, allowing for targeted suture ligation. Advantages include the absence of tissue excision and potentially less postoperative pain. It may also be combined with mucopexy for symptomatic hemorrhoidal prolapse.
  • However, compared with rubber band ligation (RBL), patients typically experience more pain in the early postoperative period following HAL. HAL is also more expensive and has demonstrated reduced cost-effectiveness compared with RBL.

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Postoperative Instructions After Hemorrhoidectomy

    Pain Management: Some pain is expected after hemorrhoid surgery. The goal is to keep it manageable. Full activity may take 2–4 weeks to resume. Pain medication is usually a combination of narcotic and non-narcotic medicines. We aim to limit the use of stronger narcotics to reduce side effects.
      Sitz Baths: Sitting in a warm bath (sitz bath) 2–3 times per day for 10–15 minutes can provide significant relief. Urination Issues: Occasionally, patients may have difficulty urinating after surgery. If this happens:
      • Try urinating while sitting in a sitz bath.
      • If unsuccessful, contact the surgeon’s office or go to the emergency department for bladder catheterization. Failure to address this can cause permanent bladder damage from over- stretching.
      Bowel Movements: Having a bowel movement within the first 48 hours after surgery is important. To help:
      • Follow a high-fiber diet.
      • Take a fiber supplement.
      • Drink plenty of liquids.