Why would your toenail lift like a bubble?

A toenail can lift like a bubble due to several reasons, including trauma or injury to the nail, fungal infections, or underlying health conditions such as psoriasis. When the nail bed becomes damaged or infected, fluid may accumulate between the nail and the nail bed, causing the nail to lift. Additionally, improper footwear or excessive moisture can contribute to this condition. If this occurs, it's advisable to consult a healthcare professional for proper diagnosis and treatment.