Concerns We Treat

Bunny Lines

The small diagonal lines that crinkle across the bridge of the nose when the face animates.

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What it is

Bunny lines are the small wrinkles that fan across the upper bridge of the nose, drawn by the muscles that scrunch the nose when a patient smiles widely, laughs, or wrinkles the nose in expression. In a younger face they appear only with motion and vanish at rest. With years of expression and as skin loses elasticity, they begin to linger at rest as faint horizontal or oblique lines across the nose.

This is a small concern, and we treat it as one. The work is precise, low-dose, and unhurried, and it is often part of a larger plan that also addresses the lines at the eyes or the brow rather than the standalone reason for a visit.

Why Patients Seek Treatment

Treatment for bunny lines suits the patient whose lines have begun to linger at rest or to read prominently when smiling, and who wants the smallest possible intervention to ease them. The work is conservative and usually quick, and it pairs well with treatment of the surrounding upper face.

It also suits patients recently treated for frown or forehead lines who have noticed the nose compensating with new expression. A small additional dose in the nasalis often resolves the question.

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UNderstanding the science

What causes it

The principal cause is repeated motion of the nasalis muscle, the small muscle that scrunches the nose, across years of expression. Patients who smile broadly, who laugh often, or who habitually wrinkle the nose in concentration tend to develop bunny lines earlier and more pronouncedly. Some patients develop them after Botox treatment of nearby muscles, as the nasalis compensates for the quieted neighbors.

Sun exposure thins the skin of the nose and deepens any lines already drawn there. Genetics decides predisposition. The change is not large, but for some patients it is visible enough to address.

Common Signs

You may notice:

  • Small lines fanning across the upper bridge of the nose, most visible when smiling broadly or scrunching the nose
  • Faint lines that linger at rest, particularly across the sides of the bridge
  • Lines that have appeared or deepened after recent Botox treatment of the brow or eyes
  • Lines that read more clearly in close-up photographs than in the mirror

Why it changes over time

Bunny lines arrive earlier than most expression lines, often in the late twenties or early thirties for patients who smile broadly. They tend to remain dynamic for a long time, easing fully at rest, before gradually beginning to linger as the skin of the nose thins with age.

The arc is gentle. Bunny lines rarely become significantly more pronounced across decades the way forehead or frown lines do, partly because the muscle itself is small. They settle into a level and tend to stay there, which is part of why patients who address them with low-dose neurotoxin often find the work easy to maintain across years.

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