Where is the nose groove

alar沟是鼻翼外侧与面颊之间的自然凹陷（鼻颊沟），鼻槛是鼻孔下缘与上唇之间的软组织嵴。二者是鼻部与周围结构的过渡带。

Why affects refinement

清晰的鼻翼沟让鼻翼不"糊"进脸颊，显鼻部轮廓清爽；鼻槛形态影响鼻孔下缘的自然弧度与nose-上唇的衔接。

Common questions and ideas

• 鼻翼沟过浅/消失：可评估填充或结构支撑；

• Thick or asymmetrical nasal sill: can be finely trimmed;

• The overall design needs to be combined with the width of the nose wing.

note

The details of the nasal base are "millimeter-level" refinement, which makes a natural transition when required to avoid excessive intervention and appearing stiff.

The detailed design of the nose requires facial measurement.