“Small blood vessels bleed underneath the nail, staining it darker,” says Miguel Cunha, DPM, founder of the NYC-based Gotham Footcare. “This is caused by trauma to the nail, such as dropping ...
“Small blood vessels bleed underneath the nail, staining it darker,” says Miguel Cunha, DPM, founder of the NYC-based Gotham Footcare. “This is caused by trauma to the nail, such as dropping ...