“Hemorrhoids” is a single word, but it describes two meaningfully different conditions, and the distinction matters more than most people realize. Whether your hemorrhoids are internal or external affects what symptoms you feel, how they’re graded, and which treatments will actually help. For patients in Maryland, DC, and Northern Virginia trying to make sense of their options, understanding this difference is the foundation for everything else.
The dividing line
The difference between internal and external hemorrhoids comes down to a single anatomical landmark: the dentate line, a border inside the anal canal that separates two very different types of tissue.
Internal hemorrhoids form above the dentate line, in tissue lined by mucosa that has few pain nerves. Because of that, internal hemorrhoids rarely hurt — instead, their hallmark symptoms are painless bleeding and prolapse (tissue bulging down through the anal opening). The bright red blood many people notice on the paper or in the bowl most often comes from internal hemorrhoids.
External hemorrhoids form below the dentate line, covered by skin-like tissue (anoderm) that is rich in pain nerves. That’s why external hemorrhoids are the ones associated with discomfort, swelling, itching, and difficulty with hygiene — and, if a clot forms inside one (a thrombosed hemorrhoid), sudden significant pain.
It’s common to have both at once, which is why symptoms can overlap.
How internal hemorrhoids are graded
Because internal hemorrhoids are so common and drive much of the bleeding and prolapse people experience, clinicians grade them on a four-point scale that guides treatment:
- Grade 1: Bulge within the anal canal that may bleed but doesn’t prolapse.
- Grade 2: Prolapses with straining but slides back in on its own.
- Grade 3: Prolapses and must be pushed back in manually.
- Grade 4: Remains prolapsed and can’t be reduced, with a risk of complications.
This grading isn’t just academic; it’s one of the main factors that determines which treatment is appropriate.
Knowing your type and grade turns guesswork into a plan. The specialists at Surgical Associates evaluate hemorrhoid patients across Maryland, DC, and Northern Virginia to pinpoint exactly what you’re dealing with — and match it to the right treatment.
Why the difference changes treatment
Because internal and external hemorrhoids involve different tissue and different symptoms, they respond to different treatments:
- External hemorrhoids are managed with conservative measures (fiber, fluids, sitz baths, topical care) and, for a painful thrombosed clot, sometimes a minor in-office procedure.
- Internal hemorrhoids — especially those causing recurrent bleeding or lower-grade prolapse — have a wider range of options, from in-office treatments like rubber band ligation to surgery for advanced cases.
This is also where a modern, minimally invasive option fits specifically into the picture. Hemorrhoid artery embolization (HAE) works by reducing the arterial blood flow that feeds internal hemorrhoids, causing them to shrink. Because of how it works, HAE is particularly well suited to internal hemorrhoids causing chronic bleeding, and it’s used for grade 1, 2, and 3 internal hemorrhoids, not for external hemorrhoids, which is a perfect illustration of why the internal-versus-external distinction matters when choosing a treatment.
The evidence supporting HAE for the right patient is strong. In a randomized clinical trial, embolization was technically successful in 100% of cases, bleeding resolved in roughly 83% of patients at 12 months, and there were no severe adverse events, all while sparing patients the wound and painful recovery of surgery (pain at the first bowel movement near 0, versus about 6 out of 10 after hemorrhoidectomy). It’s also notable that recurrence after rubber band ligation can occur in about 30% of cases, whereas embolization offers a lower recurrence profile for appropriate candidates.
The practical message: the best hemorrhoid treatment depends entirely on what kind you have. If recurrent bleeding from internal hemorrhoids is the problem, HAE may be an excellent fit. To find out, schedule a consultation — we’ll evaluate your symptoms, determine your type and grade, and explain your options, with no obligation.
The bottom line
Internal and external hemorrhoids are different conditions with different symptoms and different solutions. Internal hemorrhoids tend to bleed and prolapse painlessly; external ones tend to hurt and swell. Knowing which you have — and, for internal hemorrhoids, what grade — is the key to choosing a treatment that actually works, whether that’s conservative care, an in-office procedure, or minimally invasive embolization.
Frequently asked questions
What’s the main difference between internal and external hemorrhoids? Location relative to the dentate line. Internal hemorrhoids form above it in tissue with few pain nerves, so they tend to bleed and prolapse painlessly. External hemorrhoids form below it in pain-sensitive skin, so they tend to cause discomfort, swelling, and itching.
Which type causes painless bleeding? Internal hemorrhoids. The bright red blood many people notice during bowel movements most often comes from internal hemorrhoids, which usually don’t hurt.
Can hemorrhoid embolization treat both types? HAE works by reducing blood flow to internal hemorrhoids and is used for grades 1–3. It isn’t a treatment for external hemorrhoids. That’s exactly why identifying your type matters before choosing a treatment.
How do I know what grade my hemorrhoids are? A specialist can determine your grade through an exam. Internal hemorrhoids are graded 1–4 based on whether and how much they prolapse, which helps guide treatment.
Where can I be evaluated near me? Surgical Associates evaluates and treats hemorrhoids across Maryland, Washington DC, and Northern Virginia, with locations in Camp Springs, Silver Spring, Reston, and Waldorf.
Get the right treatment for the right problem
The most effective hemorrhoid treatment starts with knowing exactly what you’re dealing with. Contact Surgical Associates to schedule a consultation. Call 240-427-1630 or book online at sacmd.com. We serve patients across Maryland, Washington DC, and Northern Virginia. Most insurance plans accepted.
Related reading on sacmd.com:
- Hemorrhoid Artery Embolization
- Who Is a Candidate for Hemorrhoid Artery Embolization? A Self-Screening Guide
- Hemorrhoids: Condition Overview
Medically reviewed by Rodeen Rahbar, MD, Surgical Associates, LLC. This article is for general educational purposes and is not a substitute for professional medical advice. Please consult a qualified clinician about your individual symptoms.
Sources: RadioGraphics — Rectal Artery Embolization for Hemorrhoidal Disease: Anatomy, Evaluation, and Treatment Techniques; JVIR — Embolization of the Superior Rectal Arteries vs. Closed Hemorrhoidectomy: A Randomized Clinical Trial; Prevalent Technique and Results of Hemorrhoidal Embolization (PMC/NIH).
Dr. Rahbar is an esteemed vascular surgeon at Surgical Associates, known for their exceptional contributions to the field of vascular surgery. As a board-certified vascular surgeon with over 20 years of invaluable experience, Dr. Rahbar is a respected authority in the medical community serving Camp Spring, Maryland and the whole community of Maryland. Their unwavering dedication to providing advanced care for patients with diseases of the arteries and veins has earned them a reputation for excellence. Dr. Rahbar’s work embodies a passion for precision and compassion, improving the lives of those they serve, one procedure at a time.