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The Scar Isn’t the Problem. What It’s Stuck To Is.
Start scar management once the wound is fully closed and the stitches are out, usually around day 10 to 14 after hand surgery. The work that matters happens in the first SIX months, while the collagen is still remodeling.
Three things, done daily: silicone, massage and movement. About 10 minutes of hands-on work a day, plus silicone worn 12 or more hours.
In the hand, a scar matters less for how it looks and far more for what it glues down. Tendons need to slide, and a scar that binds to the tendon underneath turns a healed wound into a stiff finger.
Most people think the scar is a skin problem. Wait for it to “settle”, rub in some cream when they remember, and move on.
Then at week 8 the finger won’t fully bend, the palm feels like a hard cord, and the scar puckers every time they make a fist. By month 6 that tethering is much harder to shift than it was at month 2.
So here’s what to do, when, and how hard.
Why do hand scars cause stiffness?
Elsewhere on the body, a scar sits on top of things that do not move much.
In the hand, the skin sits millimeters above tendons that glide up to several centimeters every time you make a fist.
Healing tissue does not distinguish between the layers it is supposed to join and the layers it isn’t. It lays collagen across everything in reach.
If nothing moves during that laying-down phase, the layers set together. That is adhesion, and it is the actual reason people lose range after uncomplicated surgery.
(The tell in clinic is a scar that dimples or puckers when the finger bends. A free scar slides over the moving tendon. A tethered one gets dragged.)
How to tell if your scar is stuck down
Try this at home once the wound has healed:
- The pucker test. Watch the scar while you slowly bend and straighten the finger or wrist. Dimpling, puckering or a pulled-in line means the skin is tethered to what’s underneath.
- The slide test. Put one fingertip on the scar and try to move the skin up, down and sideways. Compare with the same spot on the other hand. Skin that won’t slide is stuck.
- The range test. Can you make a full fist and fully straighten? If the scar sits over a tendon and you’ve lost range since week 3, adhesion is the likely reason.
A hand therapist checks the same things, plus measures each joint in degrees, so you can see whether the numbers move week to week. That’s the difference between “feels a bit better” and proof.
How long does a hand surgery scar take to heal?
The wound closes in about 2 weeks. The scar takes 12 to 18 months to mature. Here’s the timeline, as a window:
- Day 0 to 14: wound closure. Keep it clean and dry; no scar work yet. Move what your surgeon allows. WINDOW: not open yet.
- Weeks 2 to 6: proliferation. Collagen is laid down fast and disorganized. The scar looks red, raised and angry, and this peaks around week 6. That’s normal. WINDOW: OPEN, start everything.
- Week 6 to month 6: remodeling. Collagen reorganizes along lines of stress. This is the phase where everything you do changes the outcome. WINDOW: OPEN, highest leverage.
- Months 6 to 18: slow maturation. Redness fades, the scar softens and flattens. Gains are still possible, just slower and smaller. WINDOW: CLOSING.
- After 12 to 18 months: the scar has reached its final state, whatever you shaped it into. Major change now usually means a procedure. WINDOW: SHUT for massage alone.
You are not removing the scar. You are deciding which direction its collagen settles in.
When can I start scar massage after hand surgery?
When the wound is fully closed: stitches out, no scabs, no weeping, no open spots. For most hand operations that’s around day 10 to 14. A wound that’s still open needs to heal first; massaging it just reopens it. If you’re unsure whether yours is healing normally, read normal wound healing or infection.
Your surgeon’s instructions take precedence. After tendon or nerve repairs, the surgeon may want the scar left alone a little longer.
How to massage a scar on your hand
Firm, not gentle. The aim is to shear the layers apart, not to moisturize.
- How long: 5 to 10 minutes, 2 to 3 times a day.
- How hard: enough pressure to blanch the scar (it goes pale under your thumb) and move the skin over the tissue beneath.
- Which direction: every direction. Small firm circles, then across the scar, then along it. Across matters more than along.
- With the skin on stretch: for the last minute, bend the finger or wrist so the scar is stretched, then massage. That’s where tethering lets go.
- What with: a plain unperfumed cream, or the silicone gel itself. Not oil heavy enough to make your thumb skid.
It should feel firm and a bit uncomfortable, not sharp. Pain that lingers more than an hour afterwards means ease off.
Do silicone sheets work on hand scars?
Yes. Silicone gel or sheeting is the best-evidenced non-surgical option for reducing raised, thickened scarring. But only if you wear it enough.
- Start once the wound is fully closed, typically day 10 to 14.
- Wear it 12 to 23 hours a day for it to do anything. An hour after dinner is decoration.
- Keep going for at least 2 to 3 months, longer if the scar is still red and raised.
- Sheets for flat areas like the back of the hand or forearm. Gel for creases and web spaces, where sheets lift off every time you bend.
- Wash the sheet daily and the skin under it. A rash or itch under silicone means take a day off, then restart.
Exercises that stop a scar sticking to the tendon
Movement is the one people skip, and the one that decides tendon glide. Full available range, often, within whatever your surgeon’s protocol allows.
A scar that is massaged but never moved still adheres. A hand that moves fully but is never massaged usually does better than the reverse.
If your protocol allows full active movement:
- Tendon glides. Straight hand, hook fist, full fist, tabletop, straight fist. Hold each 3 to 5 seconds, 10 rounds, every 2 to 3 hours while awake. See tendon glides and hand exercises after injury.
- Blocking exercises. Hold the finger just below the joint you’re working and bend only that joint. 10 reps per joint, 3 to 4 times a day. This makes the tendon pull through the scar instead of cheating.
- Full straighten. Flat hand on a table, press each finger down gently, hold 10 seconds, 5 reps. Scars over the palm love to pull fingers into a bend.
After a flexor tendon repair, don’t use this list. Your exercises follow a strict protocol for the first 6 weeks or more, and the wrong one can rupture the repair.
Why is my scar so sensitive?
Small skin nerves get cut with every incision. As they regrow, the scar can feel burning, zingy or unbearable to touch. Hypersensitivity is the reason people stop using the hand, and disuse costs more than the scar does.
Desensitize it. Rub the scar with a graded set of textures: soft cloth, towel, then rough fabric, then dip the hand into a bowl of rice, then dry beans. 2 to 3 minutes per texture, several times a day. Move up a texture when the current one stops bothering you.
A palm scar that stays tender to lean on for a few months is common after carpal tunnel release. Annoying, usually temporary.
Other things that change how a hand scar ends up
- Sun protection. New scar tissue pigments permanently. Cover it or use SPF 50 for the first year. In a tropical climate like Singapore’s, that’s not optional advice.
- Swelling control. A puffy hand makes a thicker scar. Elevation, movement, and for a bulky or edematous scar, a compression sleeve or Coban wrap alongside silicone. See swelling after a hand injury.
- Smoking. Slows wound healing. Fewer cigarettes in the first weeks means a better-healed wound to work with.
Hypertrophic scar, keloid or contracture: what’s the difference?
A HYPERTROPHIC scar stays within the borders of the original wound. Raised and red, but contained. Usually settles with silicone, massage and pressure over 6 to 12 months.
A KELOID grows beyond the original wound edges. It will not settle with silicone alone and needs specialist input: steroid injection, pressure therapy, occasionally other options.
A scar CONTRACTURE shortens across a joint and physically stops it straightening. Splinting and therapy first; surgical release if it holds. Do not wait a year hoping. See stiff hand after a cast or surgery.
A firm nodule under the scar is a fourth thing again. See a hard lump in the scar. And if your scar is at the base of the thumb with a numb patch beside it, see the trapeziectomy scar.
What a hand therapist does that you can’t do at home
- Measures. Joint angles in degrees and scar mobility, so you know whether the plan is working.
- Custom silicone and inserts molded for web spaces and finger creases, where off-the-shelf sheets won’t stay on.
- Pressure garments fitted for a thick or spreading scar.
- Splints that hold a contracting scar on stretch for hours at a time, usually overnight.
- Spotting the tether early. Catching adhesion at week 6 is a very different job from catching it at month 8.
Surgeons close the wound. What the scar becomes is largely homework, and the deadline is quieter than anyone tells you.
Ten minutes a day for three months. Unglamorous, repetitive, effective… the flossing of hand recovery.
Get it checked today if
- Redness spreading from the scar, increasing warmth, throbbing, pus or discharge, red streaks up the forearm, or a fever.
- The wound reopens or separates after the stitches come out.
- Pain escalating weeks after surgery, with a shiny, swollen, color-changed, very sensitive hand. See CRPS.
- New numbness in a finger that wasn’t there straight after surgery.
Get it checked if
- The scar is growing beyond the edges of the original wound.
- The finger or wrist is moving LESS at week 6 than it was at week 3.
- A finger is being pulled into a bend and won’t straighten fully.
- The scar is so sensitive at 6 weeks that you’re avoiding using the hand.
- The scar is still red, raised and hard at 3 months despite silicone and massage.
The surgeon closes the wound in a day. You decide what the scar becomes over the next six months.
Written by Nigel Chua, hand occupational therapist in practice since 2005. Thousands of hands, wrists and elbows assessed and treated. My credentials are here. This article explains; it doesn’t examine. A scar that’s pulling a finger out of shape deserves a hands-on review, not another month of waiting.
Part of: Recovery after hand, wrist and elbow surgery: every week-by-week guide
Every article on this site is written using the Closing Window Method: name the window your condition runs on, find where you are in it, and act while it’s still open.