Smile Lines at 18: What to Know

Nasolabial folds run from the sides of the nose toward the corners of the mouth. They can show during smiling because facial muscles move the skin into a crease. Genetics, facial structure, skin elasticity, dryness and repeated sun exposure can make the fold more visible even in young adults. A fold that is present on both sides and changes with expression is usually an appearance concern rather than a medical problem.

Look at the whole pattern rather than judging age from one line. Sudden one-sided swelling, a new firm lump, marked redness or pain is different from a longstanding crease.

Use broad-spectrum sunscreen on exposed facial skin, reapply when outdoors, and moisturise to reduce the emphasis of dryness. Avoid smoking and harsh rubbing. Take consistent photographs in the same lighting if you want to track change.

If the folds remain distressing, a qualified dermatology or aesthetic clinician can assess facial movement, skin quality and volume before discussing options such as dermal fillers, collagen biostimulator injection or a thread lift. Treatment choice depends on anatomy and goals; being 18 makes a careful consultation especially useful.

Arrange a medical assessment for a rapidly changing fold, facial asymmetry, persistent swelling, warmth, significant tenderness, skin ulceration or a new lump. Seek urgent care for sudden facial weakness, severe swelling or trouble breathing. A routine consultation is reasonable if the concern is affecting your confidence or if you want advice before any cosmetic procedure.

Ask what is creating the fold in your facial anatomy, whether skincare alone fits your concern, what alternatives exist, and how the risks and recovery of each procedure compare. Confirm the clinician's training, the product or device being proposed, and what follow-up would involve.