Cyanoacrylate tissue adhesive has contraindications; which condition is a contraindication?

• A. Superficial facial lesion
• B. Bite wound
• C. Dry skin under tension
• D. Linear incision

Answer: (B)

Cyanoacrylate tissue adhesive works best on clean, dry, well-approximated skin edges and is not suitable for contaminated or infected wounds. The key reason a bite wound is a contraindication is the high bacterial load present in bite injuries, including oral flora. Sealing such a wound with adhesive can trap bacteria, hinder drainage, and markedly increase the risk of infection, abscess formation, and wound complications. In contrast, small clean superficial wounds on the face or other non-tensioned, dry wounds can be closed with adhesive to achieve good cosmetic results, and linear, uncomplicated incisions in appropriate locations are also suitable. Therefore, bite wounds stand out as the contraindicated condition due to contamination and infection risk.