What Causes Those Vertical Black Lines on Nails?
Splinter hemorrhage (nail trauma ... and appears in one or more places under your nail. (Note: thicker lines that create a ...
USA Today1 个月
What do nails have to say about your health? Experts answer your FAQs.
Long, dark brown or red lines that follow the vertical grooves of the nail plate may indicate splinter hemorrhages, which often occur from simple trauma. However, these lines could also result ...