Deep frown lines on the forehead: what to know

These lines often sit vertically between the eyebrows and may extend upward onto the lower forehead. Repeatedly drawing the brows together folds the skin in the same area. With time, a crease can remain visible even when the muscles are relaxed. Sun exposure, dry skin, smoking, and the natural reduction of skin support can make etched lines look stronger. Their appearance does not by itself indicate a medical problem.

A careful assessment distinguishes movement-related lines from changes caused by volume loss, skin laxity, or another skin condition. Looking at the area while you raise and relax your eyebrows helps a clinician understand which factors are contributing. You can read more about [Wrinkles](/symptoms/wrinkles/).

Daily broad-spectrum sunscreen, sunglasses, gentle cleansing, and regular moisturising can help limit further environmental stress. Avoid deliberately frowning to test the lines, because repeated movement temporarily deepens them. A clinician may discuss botulinum toxin injection to relax selected muscles, or dermal fillers when a suitable depression or volume change contributes. These are different approaches and are not interchangeable; treatment choice depends on anatomy, movement, skin quality, and your goals. Explore [Botox](/treatments/injectables/botulinum-toxin-injection/) and [Dermal Fillers](/treatments/injectables/dermal-fillers/).

Arrange a dermatology assessment if a line changes quickly, appears with a new lump, rash, persistent pain, weakness, or a change in facial movement. Seek urgent medical help for sudden facial drooping, trouble speaking, severe headache, or new vision problems. For a longstanding cosmetic concern, a consultation can clarify whether muscle movement, skin texture, or volume is the main factor.

Ask which structure is creating the crease, whether movement or volume is the dominant contributor, what result is realistic for your facial anatomy, and how long swelling or bruising might last. Also ask what aftercare is needed, which warning signs require contact, and whether your medicines or previous procedures affect the plan.