Kelly Heather, 38, ended up needing brain surgery for a tumor — and it started as a discolored line on her fingernail Kelly Heather / SWNS (2) Kelly Heather, 38, first noticed a dark line on her ...

“If left untreated, paronychia can cause pus to build up and your nail to look yellow or green” This can then lead to an abscess, retraction or loss of cuticle and tender nail fold. Of ...

But if your finger is red, swollen or warm to the touch ... In rare cases, an infected hangnail can lead to complications such as an abscess or an infection that spreads to the bloodstream.