Understanding Hemorrhoids

Hemorrhoids are swollen, enlarged veins in the rectum or anus, similar to varicose veins in the legs. They occur when excessive blood flow and pressure cause veins to become inflamed and bulge, leading to pain, bleeding, itching, and discomfort.

Hemorrhoid Diagnosis and Treatment Overview:
The diagnostic process for hemorrhoids begins with a clinical evaluation, including a thorough review of symptoms and medical history, followed by a physical examination, which often includes visual inspection and a digital rectal exam. If further evaluation is needed, diagnostic procedures may include anoscopy to directly visualize internal hemorrhoids, proctoscopy or sigmoidoscopy to rule out other causes of rectal bleeding, and colonoscopy if there is concern for other colorectal conditions.

Treatment options for hemorrhoids vary depending on severity. Conservative management typically involves dietary changes such as a high-fiber diet, increased hydration, and the use of stool softeners. Symptom relief can also come from over-the-counter creams, suppositories, and sitz baths. If symptoms persist, minimally invasive office procedures like rubber band ligation, infrared coagulation (IRC), and sclerotherapy may be recommended. For more advanced cases, surgical options performed by colorectal surgeons include hemorrhoidectomy (the most effective but also the most invasive), stapled hemorrhoidopexy, and Doppler-guided hemorrhoidal artery ligation (HAL).

An increasingly popular non-surgical alternative is Hemorrhoid Artery Embolization (HAE), a minimally invasive outpatient procedure performed by an interventional radiologist. HAE requires no cutting, sutures, or general anesthesia and offers an effective treatment option for patients seeking to avoid surgery.

What is Hemorrhoid Embolization?

Hemorrhoid Embolization (HAE) targets the root cause of hemorrhoids — excessive blood flow to the hemorrhoidal veins. By blocking the arteries that supply this blood, the hemorrhoids shrink, relieving symptoms like bleeding, swelling, and pain.

Pre-Operative Process:

The pre-operative process begins with a thorough review of the patient’s medical history and symptoms. A physical exam helps confirm the diagnosis, and imaging such as CT angiography or MRI of the pelvis may be used to map the blood supply to the hemorrhoids. Lab work, including a complete blood count (CBC) and coagulation studies, may be ordered as needed. Patients are typically instructed to remain NPO (nothing by mouth) after midnight before the procedure. Medication review is also essential, especially for those on blood thinners, which may need to be paused under physician guidance.

During the Procedure:

Hemorrhoid embolization is performed in an interventional radiology suite using IV sedation—no general anesthesia is required. A small pinhole is made either in the wrist (radial artery) or groin (femoral artery) to access the vascular system. Guided by fluoroscopy (real-time X-ray), a catheter is threaded into the superior rectal arteries, which supply blood to the hemorrhoids. Tiny coils or microspheres are then injected to block this blood flow, causing the hemorrhoids to shrink. The catheter is removed, and only a small bandage is applied—no incisions or stitches are necessary. The entire procedure typically takes 45 to 90 minutes.

Post-Operative Care:

Patients are discharged the same day, as the procedure is outpatient. Mild soreness, bruising, or pelvic pressure may be experienced but is temporary. There are no specific dietary restrictions beyond maintaining healthy bowel habits. Most patients can resume light activity within 1–2 days and return to full normal activity in 3–5 days. Symptom relief usually begins within days to weeks following the procedure.

Effectiveness of Hemorrhoid Embolization:

Clinical studies have shown a 70–90% success rate in reducing rectal bleeding and discomfort related to internal hemorrhoids. This procedure offers durable relief for patients with grade I–III internal hemorrhoids. While its recurrence rate is lower than rubber band ligation, it may be slightly higher than that of surgical hemorrhoidectomy, offering a balanced alternative for patients seeking a minimally invasive solution.