Deroofing is Preferred Over Simple Drainage for HS Lesions
For hidradenitis suppurativa lesions, deroofing should be performed instead of simple incision and drainage, as drainage alone has recurrence rates approaching 100% while deroofing achieves only 4-17% recurrence with 90% patient satisfaction. 1
The Critical Distinction: Deroofing vs. Drainage
The North American HS guidelines explicitly state that simple incision and drainage is associated with recurrence rates approaching 100%, making it an inferior choice except when other methods are not immediately feasible 1. In contrast:
Deroofing Technique
- Probe the abscess and associated sinus tracts to identify the full extent of disease
- Remove the overlying skin stepwise covering the sinus or abscess cavity using scissors, punch tool, or electrosurgery
- Leave the base untreated (do not excise deep tissue)
- Achieves 17% recurrence rate with traditional technique 1
- Achieves 4% recurrence rate with electrosurgical variation 1
- 90% patient satisfaction reported 1
- Can be performed in outpatient settings 1
Recent 2025 data confirms deroofing's superiority with only 10% recurrence at 3 months and 11% at 12 months, while also improving pain and quality of life 2.
Clinical Algorithm for Draining HS Lesions
For Small Lesions:
- Use a punch tool for mini-deroofing rather than simple drainage 1, 3
- This is the preferred first-line procedural approach
For Acute Inflamed Discrete Lesions:
- Intralesional steroid injection is preferred over drainage 4
- If drainage is necessary, convert it to deroofing by removing the overlying skin 3
For Large Non-Recurrent Abscesses:
- Incision and drainage may provide temporary acute relief when deroofing is not immediately feasible 1
- Critical caveat: This should be viewed as a bridge to allow a smaller definitive deroofing or excision procedure once inflammation subsides 1
- Never consider simple drainage as definitive treatment
For Persistent or Recurrent Lesions:
- Deroofing or excision should be pursued 4
- Deroofing works effectively as monotherapy or as adjunct to systemic therapies like adalimumab 2
Why This Matters for Patient Outcomes
The evidence consistently demonstrates that the method of drainage directly impacts recurrence rates, which affects long-term morbidity and quality of life:
A large series of 590 patients confirmed that drainage was associated with the highest recurrence compared to deroofing and wide excision, which were approximately equal in effectiveness 1.
Common Pitfalls to Avoid
Do not perform simple incision and drainage thinking it will resolve HS lesions - this virtually guarantees recurrence and subjects patients to repeated procedures 1. The guidelines are unequivocal on this point.
When you encounter an acute abscess requiring drainage, use that opportunity to perform deroofing instead - probe for sinus tracts and remove the overlying skin rather than just creating a drainage incision 3.
Deroofing is effective across all Hurley stages (I-III) and for both acute and chronic lesions 2, so disease severity should not deter you from this approach.