What is the corner of the mouth called?

Answered by Michael Wilson

The corner of the mouth is known as the labial commissure. This term refers to the specific anatomical structure that defines the outer edges or corners of the mouth. The labial commissures are located where the upper and lower lips meet and form a natural boundary.

These corners play a significant role in facial expressions and are essential for various functions such as smiling, talking, and eating. They contribute to the overall aesthetics of the face and can greatly impact a person’s appearance.

One interesting aspect to note is that the labial commissures are not just a simple meeting point of the lips. They also serve as a transition area between the lips and the surrounding facial structures, particularly the cheeks. The labial commissures are influenced by the underlying muscles and tissues, which can vary among individuals and contribute to differences in the shape and appearance of the corners of the mouth.

Another related term worth mentioning is the labiomental groove. This groove is located just below the lower lip and separates it from the chin. It can vary in depth and prominence among individuals, and its appearance can also be influenced by factors such as age and facial structure. The labiomental groove plays a role in defining the lower lip and chin area and can contribute to the overall facial harmony.

In my personal experience as a healthcare professional, I have come across various cases where the labial commissures and the labiomental groove have been of concern to patients. Some individuals may have an asymmetrical appearance of their corners of the mouth, while others may have deep labiomental grooves that they find aesthetically displeasing.

Addressing these concerns often involves a comprehensive evaluation of the facial anatomy, including the underlying muscles, tissues, and surrounding structures. Depending on the specific situation, treatment options can range from non-invasive approaches such as dermal fillers to surgical interventions like lip lifts or corner of the mouth lifts.

The corner of the mouth is referred to as the labial commissure. It serves as an important feature in facial aesthetics and plays a role in various facial expressions. The labiomental groove, on the other hand, separates the lower lip from the chin. Understanding these terms and their significance can help in addressing concerns related to the appearance of the corners of the mouth.