Sutures vs Staples vs Tissue Adhesive

The four ways a wound is routinely closed

Whatever the method, the goal is the same: bring the wound edges into apposition and hold them there, without tension or gaps, until the tissue has healed enough to hold itself. Four options do this in everyday practice, and they differ less in what they achieve than in how they achieve it.

Sutures stitch the edges together with a threaded needle. Skin staples bridge them with formed metal clips. Tissue adhesive — a cyanoacrylate skin glue — is painted over apposed edges and sets into a flexible film that holds them from the surface. Adhesive closure strips are thin reinforced tapes laid across the wound.

The first two are active closures that pass through or into the skin; the second two work from the surface only. That distinction runs through the whole comparison: surface methods are quick and needle-free but hold little tension, while sutures and staples take load but cost time.

Sutures: the adaptable default

Sutures are the most versatile option and the reference against which the others are judged. A threaded needle lets the operator place each stitch exactly, set the tension by hand, and close in layers — deep sutures to take the load, finer ones to line up the surface. There is almost no tissue, depth or tension a suture cannot be chosen for, which is why the rest of the selection decision is about which suture rather than whether to suture.

That control is also their cost: suturing is slower and more operator-dependent than the alternatives, and a percutaneous non-absorbable stitch has to be removed later. Whether the strand is a smooth monofilament or a braid changes how it handles and knots — set out in monofilament vs braided sutures — and whether it is placed as interrupted or continuous stitches changes how the tension is shared, covered in interrupted and continuous suturing.

Staples: speed on long, straight, higher-tension skin

Skin staples trade the suture's fine control for speed and consistency. Each formed clip is placed in a fraction of the time a stitch takes and applies a repeatable tension, so a long straight incision closes quickly and evenly. That makes staples a common choice over the scalp, trunk and limbs, and in orthopaedic and other long-incision surgery where minutes of closure time matter; pooled trials consistently find staples measurably faster to place than sutures.

The trade-offs are precision and cosmesis. Staples cannot follow a curved or irregular edge the way a stitch can, sit proud of the skin, and are less suited to the face or other areas where the scar is on show. The evidence on wound infection is mixed and procedure-dependent rather than one-sided — see the Cochrane review below. Removal needs its own dedicated remover that bends each staple open, not a blade, as described in skin staples, staplers and removers.

Tissue adhesive: fast, needle-free, low-tension surfaces

Tissue adhesive is a cyanoacrylate glue applied over edges that are already held in apposition. It polymerises within seconds into a flexible, water-resistant film that bridges the surface, then sloughs off on its own as the outer skin turns over — so there is no needle, no injection and no removal appointment. On a small, clean, low-tension laceration with edges that meet easily, it is quick, painless to apply and gives a good cosmetic result, which is why it is popular for paediatric and cosmetic-area wounds.

Its limits follow directly from working only at the surface. It holds little tension, so it is not for wounds that gape or are pulled apart, for deep wounds without an underlying layer of closure, for mucosa or moist and hair-bearing areas, or for contaminated wounds that need to drain. It is applied over the wound, never into it. Used within those limits it is excellent; used beyond them it fails.

Adhesive closure strips

Adhesive skin-closure strips are thin reinforced tapes laid across a wound to hold the edges together from the surface. Like glue, they suit shallow, low-tension wounds whose edges already meet, and they add no needle and no removal procedure — they are simply left to lift off as the skin recovers.

Their more common role is as an adjunct rather than a primary closure: strips are often placed after sutures or staples come out to support the young scar for a few more days, or over a subcuticular closure to reinforce the surface. On anything under real tension they are a supplement to a load-bearing closure, not a substitute for it.

Matching the method to the wound

The choice is reasoned from the wound, not from a preference for one method. A few questions carry most of it: how much tension is pulling the edges apart, how deep the wound is and whether it needs closing in layers, where it sits and how much the scar will show, whether it is clean or contaminated, and how much the setting rewards speed.

As a broad shape: wounds under tension or that must be closed in depth need sutures or, for long higher-tension skin, staples; clean, shallow, low-tension wounds whose edges meet are where glue and strips come into their own; and anywhere the scar is on show pulls the decision toward a fine sutured or subcuticular closure. The detailed weighing is set out below, and the tissue-by-tissue selection guide continues it for sutured closures.

Closure is usually layered, not either-or

In practice the methods are combined more often than they compete. A deeper wound is closed in layers: absorbable sutures placed in the dermis take the tension and bring the edges together, and only then is the surface finished — with a fine suture, a subcuticular line, glue or strips — for the cosmetic result.

Seen this way the surface method is rarely doing the structural work. Glue over a buried dermal closure, or strips over a subcuticular suture, gives the neat outside of a low-tension method while the load is carried underneath. Choosing a closure is therefore often choosing a combination, and the surface choice alone should never be asked to hold a wound it cannot.

What the surgeon weighs when choosing

The tension across the wound

The first question. Edges that are pulled apart need a load-bearing closure — sutures, or staples on long skin wounds — because glue and strips hold too little and would let the wound gape.

Depth and whether it needs layers

A wound deeper than the skin needs closing in planes. That means sutures for the deep layer at least; a surface method can only finish over a closure that already carries the load.

Site and how much the scar shows

On the face and other exposed areas the decision leans to a fine sutured or subcuticular closure, sometimes finished with glue; staples are avoided where the mark would be visible.

Clean or contaminated

A contaminated wound needs precise closure that can drain, which favours sutures; tissue adhesive is not used on contaminated wounds, and material choice matters too — see monofilament vs braided.

Speed and the setting

Where closure time counts — a long incision, a restless child, a busy emergency department — staples or glue can close in a fraction of the suturing time, which is a real advantage when the wound suits them.

Removal and follow-up

Glue and strips need no removal visit; non-absorbable sutures and staples do. For a patient who will struggle to return, a method that needs no removal can tip the choice when the wound allows it.