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Dissolvable stitches: what to expect | CION Cancer Clinics
Most dissolvable stitches begin to disappear within a week or two, but some kinds are made to last several weeks or months before they fully break down. You do not need them removed. A thread end poking out or a small knot along the scar is usually normal. This page explains what happens over time, what you might see, and when to call the team. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
MI
Medically reviewed by Dr. Mohammed ImaduddinConsultant Surgical Oncologist · MBBS, MS (General Surgery), MCh (Surgical Oncology) · last reviewed September 2026, next review due September 2027
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On this page
- How long do dissolvable stitches take to dissolve?
- What happens to the stitches as the weeks go by?
- What might you see or feel along the line?
- What do people get wrong about dissolvable stitches?
- What do the stitch words in your notes mean?
- Why might you not have dissolvable stitches, and what can this page not say?
- Common questions about dissolvable stitches
The short answer
How long do dissolvable stitches take to dissolve?
Most dissolvable stitches start to disappear within a week or two, though some kinds take several weeks or even months to break down completely. You do not need them taken out, and you do not need to do anything to help them along.
Why the time varies so much
Dissolvable stitches are made from different materials. Some are designed to lose their strength quickly, for skin that heals fast. Others are built to hold for much longer, for deeper layers under strain, such as the muscle wall of the abdomen. Thicker thread lasts longer than fine thread. Your own body matters too. Healing is often slower after chemotherapy or radiotherapy, with diabetes, or when eating has been poor.
Why you may not see them at all
In many cancer operations the skin is closed with a single stitch that runs just under the surface, in and out along the edges. From outside you may see only a neat line, some glue or paper strips, and perhaps a tiny knot at each end. The stitch is there, doing its work, and it dissolves out of sight.
Your operation may use dissolvable stitches inside and a different closure on the skin. Your discharge sheet should say which you have.What to expect
What happens to the stitches as the weeks go by?
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The first days
The stitch holds the edges firmly together. You may see short thread ends or a small knot, sometimes stiff, like fishing line. Leave them alone.
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Around the first week or two
Surface ends soften and often fall off by themselves, in the shower or stuck to the dressing. Finding a bit of thread is normal.
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The weeks after
The part under the skin is slowly absorbed. A firm ridge along the scar is common and is healing tissue, not a leftover stitch.
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Over the following months
Stitches in the deeper layers break down last. Some material may still be there long after the skin looks healed, and you will not feel it.
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Now and then, a stitch works its way out
A small piece of thread can push up through the skin, sometimes with a pimple-like bump. It usually settles, but show it to the team if it stays sore or leaks.
Not sure whether this applies to you?
Ask an oncologistLooking at the scar
What might you see or feel along the line?
Most of these are normal. The cards say which ones are worth a call.
A thread end poking out
Common, and usually harmless. Do not pull it, because the rest of the stitch is still anchored under the skin. It often drops off on its own. If it catches on clothes, a nurse can trim it.
A small knot at the end of the scar
Where a stitch starts or finishes, the knot can sit just under or on the skin like a small bead. It softens and disappears more slowly than the rest.
A red, tender bump over a stitch
Sometimes the body reacts to the stitch as it dissolves, making a small spot like a pimple. Keep it clean and do not squeeze it.
Call the team if
- It grows, leaks pus or smells
- Redness spreads around it
A firm ridge under the scar
New tissue forming as the deeper layers knit together. It is not the stitch. It softens slowly over months.
Commonly believed
What do people get wrong about dissolvable stitches?
"If I can see the end, I should pull it out."
The visible end is attached to stitch that is still holding the wound. Pulling it can open the surface or leave a piece behind. Let it fall off, or ask a nurse to trim it.
"They have not gone yet, so something is wrong."
Some kinds are made to last for months. Stitches still present weeks after surgery are usually doing exactly what they were chosen for. What matters is how the wound looks, not whether thread is still visible.
"Rubbing oil on them will make them melt faster."
Oils and creams do not speed up dissolving, and on a fresh wound they can trap germs. Keep the scar clean and dry until your team says it has closed.
"Dissolvable stitches are the cheap option."
The choice is about the wound, not the bill. Surgeons pick the closure to suit the depth of the cut, the strain on it and the skin. One kind is not a sign of better or worse care.
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In your notes
What do the stitch words in your notes mean?
- Absorbable suture
- The medical name for a dissolvable stitch. The body breaks it down over time.
- Non-absorbable suture
- A stitch that stays until someone removes it, or is left in deep tissue for good.
- Subcuticular stitch
- A single stitch running just under the skin along the cut, often with only the ends showing.
- Interrupted stitches
- Separate stitches, each with its own knot, spaced along the wound.
- Stitch sinus
- A small tender opening where a stitch is working its way out. It needs the team to look.
!
When to call the ward the same day
Call your surgical team the same day if the wound edges start to separate, if thick yellow or green fluid or a bad smell comes from the line, if redness and heat are spreading, or if you have a fever or shivering. Cover the wound with a clean dressing. Do not pull at thread ends, squeeze a bump or put anything on it while you wait.
Being straight with you
Why might you not have dissolvable stitches, and what can this page not say?
Dissolvable stitches do not suit every wound. Surgeons often choose stitches, staples or clips that come out for long cuts under strain, for skin that is thin or has had radiotherapy, or where they want to check the wound closely at a removal visit. That is a choice about your wound, not a judgement about you.
It cannot tell you your timing
This page cannot say how long your own stitches will take to dissolve. That depends on the material your surgeon used, where it sits and how your body heals. If you want to know, ask the ward before discharge which stitches were used and roughly when the surface ends usually go.
It cannot judge a bump or a thread
A photo online is not the same as a nurse looking at your scar. If something is new, sore or leaking, show it to someone who can see it in person, at the hospital or at a clinic near home with your discharge summary in hand.
Questions we are asked
Common questions about dissolvable stitches
Do dissolvable stitches ever need removing?
Usually not. Occasionally a nurse trims a thread end that is catching on clothes, or removes a short piece that has worked its way to the surface and is irritating the skin. That is a quick, simple job. Do not try to do it yourself with scissors or tweezers at home.
Can I shower with dissolvable stitches?
Usually yes, once your team says showering is allowed. Water does not harm the stitches. Keep showers short, let water run over the wound rather than aiming at it, and pat dry. Avoid soaking in a tub, sitting in a bucket of water or swimming until the wound has fully closed.
A white thread is sticking out of my scar. What is it?
Almost always the end of a dissolvable stitch. Leave it alone and it will usually fall off or dissolve. If it is catching on clothes, cover it lightly and ask a nurse to trim it. If the skin around it is red, hot or leaking, call the ward.
Why is there a lump along my scar?
A firm ridge is usually new tissue as the deeper layers heal, and it softens over months. A small knot at one end may be where the stitch was tied. A soft, growing swelling, or a hot, painful lump, is different and needs the team to see it.
Are dissolvable stitches used inside my body too?
Often, yes. Deeper layers such as muscle and the tissue under the skin are frequently closed with dissolvable stitches, even when the skin itself is closed with staples or clips. You will not see or feel these, and they break down on their own over time.
Can I be allergic to dissolvable stitches?
True allergy is uncommon. A mild local reaction, such as a small red bump over a stitch as it dissolves, is more common and usually settles. If you have had a reaction to stitches before, tell your surgeon before the operation so they can plan around it.
Will dissolvable stitches leave less of a scar?
A stitch under the skin avoids the small marks that removable stitches can leave either side of the line. But how a scar looks depends far more on the operation, where it is, your skin and how healing goes. Your surgeon picks the closure for the wound, not for looks alone.
Can a local clinic trim a stitch end for me?
Usually yes. Take your discharge summary so the nurse knows what operation you had and that the stitches are dissolvable. Ask them only to trim the visible end, not to pull. If they see pus, a gap or spreading redness, ask them to contact your surgical team.
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Dr. C. Raghavendra Reddy
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Sources
- NHS — Stitches
- Cancer Research UK — Surgery for cancer
- Macmillan Cancer Support — Surgery
- American Cancer Society — Cancer surgery
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
Stitches, Staples and Clips: When Do They Come Out?If some of your closures do need removingSigns Your Wound Is InfectedHow to tell a stitch reaction from an infectionWill the Scar Fade? What to Expect Over a YearHow the scar changes after the stitches have goneLooking After Your Surgical Wound at HomeDaily care while the stitches dissolve
Talk to us
Something about your stitches worrying you?
Call the helpline and describe what you are seeing. We will help you reach the surgical team. One helpline serves every CION centre.