Keloid Too Big to Stitch Closed? When Excision Needs a Skin Graft or a Local Flap
Published: 6 October 2026
Written by Dr. Ashutosh A Shah, M.B.B.S., M.S., M.Ch., D.N.B., Board Certified Plastic and Reconstructive Surgeon, Elegance Clinic, Surat. Reg. no. [REG NO]. 22+ years in plastic and reconstructive surgery.
Medically reviewed by Dr. Ashutosh A Shah · Published 6 October 2026 · Last reviewed 6 October 2026
A large keloid that cannot be closed edge to edge after excision is covered either with a skin graft or a local flap of nearby skin. Dr. Ashutosh Shah prefers a flap on tension zones like the chest and shoulder, and a graft for broad flat areas, always followed by steroid injections or pressure to limit recurrence.
Most pages about keloid surgery stop at "it can be removed". The harder question, and the one that decides the result, is what covers the hole afterwards. Keloid removal with skin flap closure and removal with a graft are different operations with different trade-offs.
When is a keloid considered too large for simple stitching? What a keloid surgeon near Athwa Surat measures
When pulling the edges together would put the new scar under tension, which is the one thing a keloid-prone site must not have. It is about tension, not centimetres.
Three things get assessed, and size is only the first:
- How wide the defect will be once the keloid is out, always larger than the lump looks, because the excision takes a margin.
- How much slack the surrounding skin has. The back of the shoulder has little; the upper arm has more.
- Which way the skin moves when the joint moves. A closure that is comfortable lying still and tight when you raise your arm will fail at the second.
This matters because the sites keloids favour have the least spare skin. StatPearls records that "the most commonly affected locations include the deltoid, the pre-sternal chest, the upper back, and the ear". Shoulder, breastbone and upper back are all tight, mobile and under tension at rest.
There is a second option before either graft or flap, and the guidance prefers it in some cases. The international scar management recommendations published by Gold and colleagues in 2014 state that "Partial excision of the keloid is preferred if full excision poses a risk of structural damage or deformity". Taking the bulk out and leaving a rim behind can be the better operation. That is covered in FAQ six.
How does a local flap differ from a skin graft for keloid closure?
A flap brings skin that keeps its own blood supply. A graft is skin detached completely and laid onto the wound to pick up a new supply. That single difference drives everything else.
The guidance names both. Gold and colleagues state that "Skin graft or local flaps may be used in the treatment of larger scars", and that "Surgical solutions with regional or distal flaps are appropriate for some keloids". Both are legitimate; neither is the default.
- Local flap. Skin and fat from next to the defect, moved across while still attached at one edge. It arrives with its own circulation, so it is robust, a closer colour and texture match, and it can carry tension. The cost is a longer scar, because the flap's own edge has to be closed too.
- Skin graft. A sheet of skin taken from elsewhere, usually the thigh, and laid on. Simpler, no extra scarring near the defect, and it covers a broad area no flap could reach. The cost: no blood supply for the first few days, it can fail to take, and it heals flatter, paler and with a visible edge.
Why this is not merely a technical preference: a graft is thin and contracts as it heals, a flap is full thickness and does not. On a shoulder, contraction is what you are trying to avoid.
Which body sites suit a flap and which suit a graft?
Broadly: where skin moves and pulls, a flap; where the area is wide and flat, a graft. No published guideline sets out a site-by-site rule, so what follows is this practice's approach rather than a guideline.
| Keloid site | Size | Closure option | Adjuvant therapy | Follow-up schedule |
|---|---|---|---|---|
| Earlobe | Small to moderate | Direct closure, often possible even when the lump looks large | Intralesional steroid, or sustained pressure | Prolonged, set at the first post-operative visit |
| Chest or breastbone | Moderate to large | Local flap preferred. High tension at rest and with breathing | Intralesional steroid; radiotherapy in selected cases, arranged before surgery | Prolonged, with early review while recurrence is still thin |
| Shoulder or deltoid | Moderate to large | Local flap preferred. Movement loads the closure daily | Intralesional steroid; pressure where the shape allows | Prolonged, continuing past the point the scar looks settled |
| Upper back | Large and broad | Graft where no flap can cover it; flap if local slack allows | Intralesional steroid, with silicone or pressure as advised | Prolonged, and longer where a graft was used |
| Any site, where full removal risks deformity | Any | Partial, or intralesional, excision rather than total | Adjuvant in every case, as below | Prolonged, because keloid tissue remains by design |
The adjuvant column is not optional in any row. Our keloid treatment options page sets out the full range, and before and after results are shown separately.
What post-operative therapy keeps a large keloid from returning?
Something applied after surgery, every time, without exception. This is the part of the page that matters most, because the closure method does not prevent recurrence and was never going to.
StatPearls is blunt about why: "Due to a high recurrence rate of 45% to 100%, this method should always be paired with adjuvant therapy, such as postoperative radiation or intralesional steroid injections." Read the top of that range again. Excision on its own can fail completely.
Gold and colleagues put the same rule as an instruction: "To prevent keloid recurrence after surgery, adjunctive therapies should be applied." On what to use, they name "Silicone gel or sheeting and intralesional corticosteroids" as "among the more conservative approaches to postoperative keloid prophylaxis", and add that "In carefully selected patients, radiotherapy after surgical excision is a viable treatment option".
They also say something about the conversation rather than the treatment, and it is the sentence a surgeon should be judged on: "Given the significant potential for recurrence after surgical removal, patients should be counseled beforehand regarding their expectations and possible outcomes." Beforehand. If nobody has had that conversation before your date is set, ask for it.
In our practice, the adjuvant plan is agreed before the operation is booked rather than after, because one of the options has to be arranged in advance, and because a patient who understands the recurrence risk at the consent stage is a different patient from one who discovers it at six months. The specific agents, intervals and duration are set individually and are not something a page can give you.
What does the donor area look like after healing?
It depends which operation you had, and it is a fair question that rarely gets answered honestly. Neither source cited on this page discusses donor sites at all, so this section is description rather than published guidance.
After a local flap, there is no separate donor area. The flap's edge is closed as part of the same wound, so what you have is one longer scar near the original site rather than two sites. Longer, but in one place, and in skin that matches.
After a skin graft, there are two healing areas. The grafted patch tends to stay flatter and paler with a visible edge, and may stay different in texture permanently. The donor area, usually the thigh, heals as a broad flat mark, pink at first and fading over many months, and it is the part patients most often forget they will have.
One question deserves a direct answer: can the donor site itself form a keloid? It is a new wound in someone who scars abnormally, so it cannot be ruled out. What makes it less likely is location: the thigh is not on StatPearls' list of commonly affected locations. Less likely is not never, and it is worth raising before choosing a graft.
Next step
Bring photographs and a history: how long it has been there, what has been tried, and what happened afterwards. Closure method cannot be chosen from a description, but whether you are in flap, graft or partial-excision territory is usually clear once it has been seen. You can send keloid photos for review, and more about the surgeon is on the about Dr. Ashutosh Shah page.
This page is for education and is not a substitute for examination. A keloid cannot be assessed, and a closure method cannot be chosen, from a photograph or a description alone. No drug, steroid preparation, dose, injection interval or radiotherapy schedule is given here, because those are individual prescribing decisions. Keloids are managed rather than cured, and no operation described here prevents recurrence on its own; the recurrence rate after excision without adjuvant therapy is high enough that surgery alone should not be offered. Please consult Dr. Ashutosh A Shah or another qualified plastic surgeon about your own keloid.
FAQs
Can a keloid grow back on the skin graft itself?
Recurrence usually appears at the edges where the graft meets your own skin rather than in the middle of the graft, because that junction is where the healing and the tension are. It is one of the reasons adjuvant therapy is applied to the whole area and not just to where the keloid was. Any new thickening at a graft margin should be reviewed early, while it is still thin.
Is flap surgery for keloid done under local anaesthesia?
It depends entirely on the size and site, and it is decided at assessment rather than in advance. A small earlobe closure and a flap across a shoulder are different operations with different requirements. A keloid surgeon near Athwa Surat will tell you which applies to your keloid once it has been examined and measured, and that conversation should also cover how long you will be off work.
How long does a keloid flap take to heal?
The wound closes in weeks and the scar keeps changing for far longer, which are two different timelines that get confused. No specific number is given here because it varies with the site, the size and whether a flap or graft was used. What matters more than the healing time is that follow-up continues well past the point the wound looks finished, because that is when recurrence shows.
Will the graft colour match my skin?
Usually not exactly, and you should expect that rather than hope otherwise. A graft commonly heals flatter and paler than the skin around it, with an edge that stays visible. This is one of the real advantages of a local flap, which brings adjacent skin and therefore a closer match. If colour match matters a great deal to you, say so at the consultation, because it legitimately influences the choice.
Do I need radiation after large keloid removal?
Not always, and the important part is the timing rather than the decision. Gold and colleagues describe radiotherapy after excision as "a viable treatment option" in "carefully selected patients", and StatPearls notes it is "Best utilized as adjuvant therapy 24 to 28 hours following excision". That window means it has to be arranged before the operation, not considered afterwards. Whether it suits you is a specialist decision, and the full range of adjuvant options is covered on our keloid treatment options page.
Is intralesional excision safer than total excision?
In some situations the guidance prefers it. Gold and colleagues state that "Partial excision of the keloid is preferred if full excision poses a risk of structural damage or deformity". The logic is that removing the bulk while leaving a rim avoids creating a fresh wound in normal, keloid-prone skin at the margins. The trade-off is that keloid tissue is deliberately left behind, so adjuvant therapy and follow-up matter even more, not less.
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