Skin tear classification: types 1, 2 and 3 in plain English
By Margaret Hale, Reunoa EditorialLast updated
The short answer
The International Skin Tear Advisory Panel (ISTAP) sorts skin tears into three types. Type 1: no skin loss — the flap can be laid back to cover the wound. Type 2: partial flap loss — the flap covers only part of the wound. Type 3: total flap loss — no flap left, the whole wound bed is exposed. The type guides dressing choice and healing expectations.
Key takeaways
- ISTAP's three-type system is the most widely used skin tear classification worldwide [1].
- Type 1 = no skin loss; Type 2 = partial flap loss; Type 3 = total flap loss [2].
- Nurses in many countries use it, and it has been translated into several languages.
- Higher types usually take longer to heal and need more careful dressing.
- Families can use the types to describe a wound clearly on the phone.
On this page
When a home-care nurse or GP asks "what type of skin tear is it?", they mean the ISTAP classification. It's simple enough for anyone to use, and knowing it helps you describe a wound accurately and understand the care plan.
Where the classification comes from
The International Skin Tear Advisory Panel (ISTAP) is a group of wound-care experts that published consensus statements on skin tears in 2011 [3] and best-practice recommendations for aged skin in 2018 [1]. Their classification replaced older, more complicated systems because it is quick and consistent between different nurses.
ISTAP defines a skin tear as a traumatic wound caused by mechanical forces, including removal of adhesives, where the skin layers separate. Severity depends on depth — a partial-thickness tear separates the top layer from the dermis, a full-thickness tear separates both layers from the tissue underneath [2].
The three types at a glance
| Type 1 | Type 2 | Type 3 | |
|---|---|---|---|
| Name | No skin loss | Partial flap loss | Total flap loss |
| What you see | A linear cut or a flap that covers the whole wound when laid back | A flap that covers only part of the wound | No flap; the whole wound bed is visible |
| What it means | Best chance the flap reattaches | Part heals from the edges and below | Heals from the edges and base; slowest |
| Typical care | Reposition flap, silicone dressing | Reposition what's there, silicone dressing | Moist non-stick dressing, closer follow-up |
Type 1 — no skin loss
The skin has split in a line, or there's a flap that can be gently rolled back to cover the wound completely. This is the most favourable type. Handled carefully — flap repositioned, non-stick dressing, no tape — many Type 1 tears heal within a couple of weeks.
Type 2 — partial flap loss
Part of the flap is missing or has died, so when you lay it back, some of the wound remains open. The exposed part must heal by new skin growing in from the edges. Healing usually takes longer and the dressing needs to keep the open area moist.
Type 3 — total flap loss
There is no flap left — it was torn off or has died. The whole wound bed is exposed. These tears need the most careful care and are the most likely to need a nurse's input. In a 2024 hospital trial, healing rates were lower across higher skin tear types, though silicone foam dressings improved results in every category [4].
Why the type matters
- Dressing choice: all types benefit from non-adherent silicone dressings, but Type 2 and 3 tears may need dressings that manage more fluid.
- Healing expectations: a Type 3 tear won't close as fast as a Type 1 — that's normal, not failure.
- Communication: "a Type 2 skin tear on the left forearm, about 3 cm, bleeding stopped" tells a nurse exactly what they need.
- Tracking: in care homes, recording the type helps spot patterns and measure prevention. Skin tears are common there — about 1 in 5 residents had one in a 2020 study [5].
How to describe a skin tear on the phone
- Where: which arm or leg, front or back.
- Size: length and width in centimetres (a coin is a useful comparison).
- Type: 1, 2 or 3.
- Bleeding: stopped, oozing or still bleeding despite pressure.
- Medicines: blood thinners, aspirin or steroids.
- Signs of infection: redness spreading, warmth, pus, fever.
Then follow the steps in how to treat a skin tear.
Frequently asked questions
What are the three types of skin tears?
Type 1 has no skin loss, Type 2 has partial loss of the skin flap, and Type 3 has total flap loss with the wound bed fully exposed. The system comes from the International Skin Tear Advisory Panel.
What is a Category 2 skin tear?
Older systems used "categories". In today's ISTAP system the closest equivalent is Type 2: a skin tear where the flap covers only part of the wound.
Which skin tear type heals fastest?
Type 1, because the flap can cover the whole wound and often reattaches. Type 3 usually takes longest.
Is a skin tear a pressure ulcer?
No. Skin tears are caused by friction, shear or a knock. Pressure ulcers come from prolonged pressure over a bony area. Both are more common in fragile, older skin.
Sources
- LeBlanc K, Campbell KE, Wood E, Beeckman D Best Practice Recommendations for Prevention and Management of Skin Tears in Aged Skin: An Overview. Journal of Wound, Ostomy and Continence Nursing, 2018. PubMed 30395131
- Best practice recommendations for the prevention and management of skin tears in aged skin (ISTAP) — Wounds International.
- LeBlanc K, Baranoski S, et al. Skin tears: state of the science: consensus statements for the prevention, prediction, assessment, and treatment of skin tears. Advances in Skin & Wound Care, 2011. PubMed 21876389
- Fulbrook P, et al. Healing rate of hospital-acquired skin tears using adhesive silicone foam versus meshed silicone interface dressings. International Journal of Nursing Practice, 2024. PubMed 38123157
- LeBlanc K, et al. Skin tear prevalence and incidence in the long-term care population: a prospective study. Journal of Wound Care, 2020. PubMed 32654616
General information, not medical advice. Written by the Reunoa editorial team; Reunoa makes Bruise Defense & Repair Serum. See our editorial policy for how we pick sources and keep product mentions fair.