Tissue adhesive for wound closure: when to replace suturing

In recent years, the phrase "wound closure without stitches" has become increasingly prominent on cosmetic ads, accompanied by images of smooth incisions and promises of "no pain, no cutting, no scar." The technology behind these invitations is typically tissue adhesive (tissue adhesive). This is not a new invention — skin glue has been used in medicine for decades — but the current marketing wave is causing many people to misunderstand the scope of what it actually replaces. This article helps you distinguish between proven benefits and blown-up expectations.

What is tissue adhesive?

Tissue adhesive is a medical material in liquid or gel form, applied to the edges of skin that have been pressed together to keep them adhered during healing. In clinical practice, two common types are:

• Cyanoacrylate glue (e.g., 2-octyl cyanoacrylate): sticks to skin surfaces, hardens quickly when exposed to moisture, forming an outer protective layer. This is the most familiar type in emergency rooms and for closing shallow skin cuts.
• Fibrin and other "biological" glues: mimicking natural blood clotting mechanisms, often used to stop bleeding, seal tissue inside, and support healing of skin more than simple surface closure.

It's important to clarify: most cosmetic ads promising "stitch replacement" are referring to the cyanoacrylate type applied externally. It does not "sew" in the sense of stitching deeper layers of tissue; rather, it keeps shallow wound edges together after the doctor has treated the underlying layer with a scalpel or suturing technique.

Advantages when used correctly

When chosen for the right situation, skin glue offers several benefits documented in medical literature:

• No need for stitches: The glue naturally sloughs off dead skin after 5-10 days, reducing one follow-up visit and eliminating the fear of stitches for children or those afraid of needles.
• Faster treatment time for shorter, narrower cuts — useful when you need to reduce pain at the site.
• Water-resistant barrier, allowing patients to bathe sooner and protect surface bacteria during the initial healing period.
• Equivalent cosmetic results with suturing for shallow, less tense wounds, according to many comparative studies. Note "equivalent," not "better" or "no scar."

It's important to emphasize: "equivalent" is the most truthful scientific conclusion available. Any ad claiming glue will "completely prevent scarring" is exaggerating, as scarring depends more on tissue health and wound tension than the adhesive material.

Disadvantages and limitations to be aware of

This part is rarely mentioned in ads but is crucial for those preparing for surgery:

• Cannot withstand high tensile force: Skin glue is weaker than suturing when wounds are stretched. In areas with tension, single-use glue can cause skin edges to open, prolong healing time, and increase the risk of poor scarring.
• Does not replace deep stitching: For surgeries with multiple layers, stitches are still needed to bear the force; glue serves only as an outer layer.
• Risk of allergic reaction, contact dermatitis in people sensitive to glue components, especially cyanoacrylate.
• Not suitable for infected wounds, large or oozing areas, or mucous membranes, continuously wet areas.
• Higher material cost than regular suturing, although saving on needle cutting.

Appropriate areas and when to consider replacing stitching

Skin glue is typically considered for shallow, straight, narrow cuts, such as small lines on the face or less mobile areas. On the other hand, highly mobile areas (joints, hands), tense skin, deep or irregularly shaped wounds usually still require stitches or a combination of internal stitching with external glue.

In practice, decisions are rarely "glue or no stitches." Many optimal cases involve combination: deep stitching to bear force, followed by glue or bandage for the outer layer. The decision belongs to the surgeon after evaluating the specific wound position, tension, and tissue characteristics of each individual. There is no one-size-fits-all answer for every surgery.

Safety considerations and individual factors

The effectiveness and safety of any wound closure method depend on an individual's health. People with history of keloids, hypertrophic scars, allergy to medical materials, conditions slowing healing (diabetes, immunosuppressive drugs, smoking) should consult thoroughly before deciding. Some individuals may be unsuitable for glue and will have better results with stitches. Be wary of ads promising "new technology replacing all suturing, suitable for every case" — these are warning signs of blown-up advertising, as no evidence supports such absolute claims. Real outcomes depend on individual health and must be evaluated by a qualified medical professional at a certified facility with follow-up and treatment plans.

Dr. Vo Thanh Sang's Perspective

According to Dr. CKI Vo Thanh Sang, tissue adhesive is a useful tool in the "toolbox" of surgeons, not a substitute for all suturing techniques. Its value lies in choosing the right wound, area, and often in combination rather than exclusion. It's important for patients not to choose methods based on ads but on specific clinical evaluations: position, tension, healing capacity, and personal risk of scarring. A good skin closure technique is truly meaningful only when performed by a qualified surgeon at a certified facility with comprehensive post-operative follow-up.

If you are preparing for a surgery with incisions and want to understand the appropriate closure method for yourself, schedule a direct consultation to be advised based on your condition. Contact hotline 079 7479 222 for support.

This article provides informational reference about medical technology and is not a substitute for direct consultation with a qualified medical professional.