Onycholysis, or lifting of the toenail, occurs when the nail plate separates from the underlying nail bed. This often starts at the tip or sides of the nail and can create a white or yellowish area where the nail has detached. While it may not always be painful, it can make the nail more vulnerable to infection and debris buildup. Common causes include trauma, repetitive pressure from footwear, fungal infections, or underlying skin conditions. Early assessment is important to determine the cause and prevent progression. At Uxbridge Foot clinic, we provide thorough evaluation and customized treatment plans, which may include nail care, antifungal therapy, footwear guidance, and preventive strategies to promote healthy nail regrowth and restore the appearance and function of your toenails.