Woman urged to see doctor immediately after posting concerning photo of fingernail

Well, Healthline explains ‘a small black line that forms vertically underneath your nail may be a splinter hemorrhage’. If the line is horizontal, it may be a ‘melanonychia’.

“These may be harmless or a sign of a more serious health condition,” the health site notes.

Thicker horizontal stripes on the nail are called ‘Beau lines’ and while not usually harmful, ‘nail discoloration in the nail bed can be a symptom of a type of cancer called subungual melanoma’.

Cleveland Clinic also speaks about the symptoms to look out for, and it details: “It usually appears as a dark, vertical (top to bottom) streak on your nail. Subungual melanoma is rare but serious. This type of skin cancer – called acral lentiginous melanoma – is an aggressive form of melanoma.”

The Redditor shared an update on the matter in the thread and wrote: “Got a referral to a dermatologist today from my regular doctor. Just waiting for them to call me.”

Hopefully, it’s good news for the Redditor!