What should you know about number 11 forehead wrinkles?

The nickname refers to the paired vertical creases in the glabellar area, between the eyebrows. Repeated frowning or concentrating contracts the underlying muscles, while reduced elasticity and ultraviolet exposure can make resting lines more visible. Genetics, skin type, smoking, and everyday facial expression also influence how early or deeply lines appear.

These lines are usually a cosmetic skin concern, but a sudden new crease with facial weakness, numbness, or other neurological symptoms is different and needs medical attention.

Use broad-spectrum sun protection, protective clothing, and a moisturiser suited to your skin. Avoid rubbing the area and discuss any active skincare ingredients if your skin is sensitive or irritated.

A qualified clinician can assess whether movement is the main driver and explain [Botox](/treatments/injectables/botulinum-toxin-injection/), which reduces targeted muscle activity, or whether another concern such as etched texture or volume change needs a different approach. [Dermal Fillers](/treatments/injectables/dermal-fillers/) are not suitable for every area or person and require an individual risk assessment.

Seek prompt medical review for a rapidly changing line with a lump, bleeding, ulceration, persistent rash, or significant pain. Get urgent help for sudden facial drooping, trouble speaking, new vision changes, or weakness or numbness in an arm or leg.

Ask whether muscle movement, photoaging, or etched skin is the main factor; which treatment fits the location; how expression may change; what adverse effects to watch for; and when follow-up is needed.