How Fast Is Wound Healing?

Skin cells migrate across a wound at roughly 0.5 mm per hour. A typical paper cut closes within 24-48 hours, and the entire surface of your skin is replaced every 27 days through this constant unseen renewal.

Your skin replaces itself entirely every 27 days — roughly 35 g of dead cells per week.

• 5× faster than dunes march
• 5× slower than glaciers flow