Dissolving stitches break down inside your body through a chemical process, gradually losing their strength as your wound heals and eventually being absorbed completely by surrounding tissue. Depending on the material used, this takes anywhere from 42 days to nearly 8 months. The key idea is that the suture does its job holding tissue together during the critical healing window, then disappears on its own so you don’t need a return visit for removal.
The Chemistry Behind Dissolution
Two different chemical processes drive the breakdown, depending on whether the suture is synthetic or natural.
Synthetic dissolving stitches, which make up the majority used today, degrade through hydrolysis. Water molecules in your tissue gradually break apart the chemical bonds (specifically ester bonds) in the polymer chain. Think of it like a rope made of linked rings: water slowly snaps one ring at a time until the rope can no longer hold weight, and eventually the fragments are small enough for your body to clear them away. Because hydrolysis is driven by moisture, these sutures start degrading from the moment they contact living tissue.
Natural dissolving stitches, made from processed animal intestine (called surgical gut), break down differently. Your body treats them as protein and sends enzymes to digest them, the same way it would break down any foreign biological material. This enzymatic process is faster and less predictable than hydrolysis, which is one reason synthetic options have largely replaced gut sutures in modern surgery.
Common Materials and How Long They Last
Surgeons choose a suture material based on how long the wound needs support. Here’s how the most widely used options compare, based on data from Ethicon (the largest surgical suture manufacturer):
- Fast-absorbing polyglactin (Vicryl Rapide): Loses all strength within 10 to 14 days. Fully absorbed by about 42 days. Used for superficial skin closures and areas that heal quickly.
- Standard polyglactin (Vicryl): Retains 60 to 80 percent of its strength at 2 weeks, depending on thickness. Fully absorbed in 56 to 70 days. One of the most commonly used dissolving sutures overall.
- Poliglecaprone (Monocryl): Keeps about 75 percent of its strength at 2 weeks and 25 percent at 4 weeks. Takes 91 to 119 days to fully absorb. Often chosen for subcutaneous (under-the-skin) closures.
- Polydioxanone (PDS): The longest-lasting option, retaining 75 percent of strength at 2 weeks. Takes 6 to 8 months to fully absorb. Used where prolonged wound support matters, such as abdominal wall closures.
An important distinction: “losing strength” and “fully dissolving” are two separate timelines. A suture might stop providing meaningful support to your wound weeks before the material itself has completely disappeared from your body.
Monofilament vs. Braided Construction
Beyond the chemical composition, dissolving stitches come in two physical forms. Monofilament sutures are a single smooth strand, like fishing line. Braided sutures are woven from multiple smaller strands twisted together, giving them a slightly rougher texture.
This difference matters for healing. Monofilament sutures slide through tissue more easily and have a smoother surface, which makes them less hospitable to bacteria. Braided sutures handle more naturally for the surgeon and hold knots better, but the tiny gaps between their woven strands can wick fluid and harbor bacteria, a property called capillarity. Many braided sutures are coated to reduce this effect, though the coating can make knots slightly less secure. Your surgeon picks one or the other based on the wound location, infection risk, and how much strength the closure needs.
Where Dissolving Stitches Are Used
Dissolving stitches are the standard choice any time removing sutures would be impractical or unnecessary. The most common scenario is internal tissue layers. If you’ve had abdominal surgery, a cesarean section, or a deep laceration repaired, the layers of tissue beneath your skin were almost certainly closed with absorbable sutures. You’d never see these stitches, and they dissolve long before you’d know they were there.
They’re also widely used in the mouth after dental extractions or oral surgery, since the moist environment and constant movement make suture removal difficult. Gynecological and urological procedures rely on them heavily, as do pediatric surgeries where a child may not tolerate a removal visit. For surface skin closures, fast-absorbing varieties are sometimes used on the face or in children to avoid the stress of suture removal, and research suggests cosmetic outcomes are comparable to non-absorbable stitches in many of these cases.
What “Spitting Stitches” Look and Feel Like
Sometimes a dissolving stitch works its way to the surface instead of being absorbed internally. This is called suture spitting, and it typically happens between 2 weeks and 3 months after surgery, though with longer-lasting materials it can occur months or even years later.
You’ll usually notice a small bump or pimple-like spot near your incision, sometimes with a visible thread poking through the skin. The area around it may be red, swollen, or tender, and you might feel a foreign-body sensation or see a small amount of discharge. This is relatively common and not automatically a sign of infection.
However, certain signs suggest the spitting stitch has led to a localized infection: increasing redness spreading outward from the site, warmth, significant pain, pus, or fever and chills. If the extruding suture material develops a pus-filled pocket underneath (an abscess), it may need to be drained. In most straightforward cases, the exposed stitch fragment simply needs to be removed, which your doctor can do quickly in the office.
Caring for Your Wound
Wounds closed with dissolving stitches don’t require dramatically different care than any surgical incision, but a few specifics matter. You can typically shower 24 hours after surgery. Use mild soap and water, and gently pat the area dry with a clean cloth. Avoid submerging the wound in a bath, pool, or hot tub, since prolonged soaking introduces bacteria and excess moisture.
Staying active helps healing by improving blood flow. Short walks are generally encouraged, but you should avoid heavy lifting, straining, running, and exercises that involve twisting or bending for about a month, or until your surgeon clears you. If you were given a topical ointment, apply a thin layer as directed. Beyond that, keeping the site clean and dry is the most important thing you can do. Resist the urge to pick at any visible suture ends. They’ll either dissolve on their own or fall away as the material breaks down.