Viral TikTok dermatologist urges people to look at their nails

Dr. Lindsey  Zubritsky, whose medical TikToks have amassed 1.4 million followers, says everyone should check their nails regularly for brownish-yellow lines that extend across the nail. “This is the one nail sign I’m begging you not to ignore,” she says.

The dark-pigmented streak, as she describes it, could be a serious form of cancer known as a subungual melanoma. If your finger and toe nails are generally covered in polish, she recommends taking a look between manicures and pedicures.

People at greater risk include people with a family history of melanoma, adults over 50 and those with darker skin. Though the cancers are rare, she says checking “could save your life.”