Subcuticular suture basics

The subcuticular suture is placed within the skin just beneath the epidermis, rather than passing through the full thickness of the skin. It is commonly used for cosmetic closure because it can produce a smooth scar with no external stitch marks. This technique is often preferred when wound edge alignment and cosmetic outcome are especially important.

It is usually used in relatively clean wounds with well-approximated edges and is often placed using absorbable suture material. Because the stitch runs beneath the skin, it avoids the need for multiple external stitch removals. However, it requires a good understanding of tissue layers and careful technique, making it more advanced than simple interrupted suturing.

For beginners, the important teaching points are maintaining a uniform depth within the dermis, keeping the stitch line even, and avoiding too much tension. The goal is smooth approximation rather than forceful closure.