What does the hyponychium do?

The hyponychium plays a critical role in maintaining nail health by forming a seal between the free edge of the nail and the skin of the fingertip. This seal is essential as it helps to protect the underlying sensitive tissue from dirt, microorganisms, and potential injury. By creating a barrier, the hyponychium prevents infections and preserves the integrity of the nail unit.

In addition, this protective function is fundamental in ensuring that the nail remains healthy and free from complications that can arise from exposure to harmful elements. While other structures associated with the nail, such as the matrix and nail plate, have their respective functions in growth and support, the hyponychium specifically focuses on creating that vital barrier and seal.