Learn hidradenitis suppurativa stages, Hurley Stage 1, 2 and 3 differences, symptoms, tunnels, scarring, and treatment options.
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Medically reviewed by Op. Dr. Yasir Gözü · General Surgery and Proctology · Last updated: July 20, 2026
Written and Compiled by: Dr. Yasir Gözü
Medical Review: Dr. Yasir Gözü | Published: May 1, 2026 | Last Updated: May 1, 2026
Important Medical Notice: Hidradenitis suppurativa stage cannot be confirmed by symptoms alone or by looking at one photo. If you have rapidly growing p
Quick Answer
Hidradenitis suppurativa stages are commonly described with the Hurley staging system: Stage 1 means abscesses or nodules without tunnels or significant scarring; Stage 2 means recurrent abscesses with tunnels and scarring in separated areas; Stage 3 means widespread disease with interconnected tunnels, chronic dr Staging helps physicians estimate disease severity and choose suitable treatment options. Mild disease may be managed with lifestyle changes, topical treatment, and early medical follow-up. Moderate disease may require oral antibiotics, laser-based treatment, deroofing, or combined care. Severe disease may require biologic therapy, surgery, wound care, and long-term follow-up.
Medical Disclaimer: This article is for educational purposes only and does not replace medical examination, diagnosis, staging, or treatment. HS severity should be evaluated by a qualified physician.
Table of Contents
Hidradenitis suppurativa, also known as HS or acne inversa, is a chronic inflammatory disease of the h It commonly affects friction-prone areas such as the armpits, groin, buttocks, inner thighs, under-breast area, and perianal region. The ICD-10-CM code for hidradenitis suppurativa is L73.2.
HS staging describes how advanced the disease is. It helps answer key questions: Are there only p
The most widely used clinical system is the Hurley staging system. It divides HS into three main stages: Hurley Stage 1, Hurley Stage 2, and Hurley Stage 3.
Clinical Note from Dr. Yasir Gözü: In HS, staging is not just a label. It is a treatment compass. A small p They need different levels of attention.
For a general overview of the disease, see What is Hidradenitis Suppurativa? Diagnosis and Treatment Process.
Hurley Stage 1 is the mildest stage of hidradenitis suppurativa. In this stage, the patient may have single or multiple p
Stage 1 disease may be managed with early medical care, lifestyle measures, friction reduction, gentle skin care, topical treatments, and selected oral medications if needed. Early recognition matters because untreated recurring inflammation may progress over time.
Stage 1 FindingWhat It MeansWhy Early Care Helps
Painful nodule
Inflamed hair follicle area
May be easier to control before tunnels form
Small abscess
Localized inflammation or infection
Needs assessment if recurrent or painful
No tunnel
No established sinus tract
Earlier stage may respond to simpler treatment
For safe supportive care, see How to Treat Hidradenitis Suppurativa Naturally?.
Hurley Stage 2 is moderate hidradenitis suppurativa. In this stage, abscesses recur and are usually accompanied by sinus tracts, tunnels, and scarring. The lesions may be single or multiple, but they are typically separated from each other rather than forming one widespread interconnected network.
Stage 2 HS often needs a more structured treatment plan. Options may include oral antibiotics, anti-inflammatory treatment, biologic therapy in selected cases, laser-based care, deroofing, local excision, wound care, and trigger management.
Important Warning: Recurrent dr Repeating antibiotics without evaluating the tunnel can delay proper treatment.
For medication-focused care, see The Best Antibiotics for Hidradenitis Suppurativa. For laser treatment, see Hidradenitis Suppurativa: Laser Treatment and New Methods.
Hurley Stage 3 is severe hidradenitis suppurativa. In this stage, there may be diffuse involvement across a region, interconnected tunnels, repeated abscesses, chronic dr
Stage 3 HS usually requires advanced management. Treatment may include biologic therapy, surgical excision, CO2 laser-based tissue treatment in selected cases, wound care, p Lifestyle changes can still support treatment, but they are rarely enough alone at this stage.
StageMain FindingGeneral Treatment Direction
Stage 1
Nodules or abscesses without tunnels or extensive scars
Lifestyle care, topical therapy, early medical follow-up
Stage 2
Recurrent abscesses with tunnels and scarring in separated areas
Oral antibiotics, laser, deroofing, local surgery, combined care
Stage 3
Widespread interconnected tunnels, chronic drainage, extensive scarring
Biologics, surgery, wound care, long-term multidisciplinary management
For surgical options, see Surgical Treatment for Hidradenitis Suppurativa: When and How Is It Performed?.
Staging matters because the right treatment depends on what is happening under the skin. A closed p Treating all of them with the same approach is like using one key for every locked door in a hospital corridor.
Treatment OptionMore Commonly Considered InImportant Note
Lifestyle and skin care
All stages
Supportive, not a replacement for medical care
Topical treatment
Stage 1
Used in selected mild cases
Oral antibiotics
Stage 1-2, selected cases
May reduce inflammation, but may not remove tunnels
Laser-based treatment
Selected Stage 1-2 and some chronic lesions
Depends on lesion type and active inflammation
Deroofing or excision
Stage 2-3
Targets tunnels or scarred diseased tissue
Biologic therapy
Moderate-severe disease
Requires specialist evaluation and monitoring
For dietary support, see Could Diet Affect Hidradenitis Suppurativa?.
Yes. HS stage can change over time. Some patients rem Early diagnosis and treatment may help reduce progression risk.
HS progression is not the patient’s fault. But recognizing patterns early gives the care team more options before the disease lays down a deeper tunnel network.
Patients should not diagnose their own Hurley stage, but they can track symptoms that help the doctor evaluate severity. A simple tracking system can reveal whether HS is stable, improving, or becoming more active.
Tracking ItemWhat to RecordWhy It Helps
Location
Armpit, groin, buttock, under-breast, perianal area
Shows disease distribution
Recurrence
Same place or new place?
Helps identify persistent disease areas
Drainage
Color, odor, amount
May suggest active inflammation or tunnels
Scarring
Hardness, thickening, pulling, visible scars
Important for staging and treatment planning
Wrong actions can worsen HS and may push mild disease into a more complicated pattern. HS-prone skin should be treated gently, not attacked like a stubborn st
Emergency Warning: Fever, chills, rapidly spreading redness, severe worsening p
You should see a doctor if p Early evaluation can help determine whether HS is Stage 1, Stage 2, or Stage 3 and what treatment approach is appropriate.
Staging is the beginning of a treatment plan, not the end. Once the stage is understood, the care path becomes clearer.
If you have recurrent p
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