What is a lump on your finger with green circle?

A lump on your finger with green circle is a condition known as a paronychia. It is an infection of the cuticle or nail fold, which is the skin surrounding the nail. Paronychia is usually caused by a bacterial infection, such as Staphylococcus aureus or Streptococcus pyogenes. It can also be caused by a fungal infection, such as Candida albicans.

Paronychia typically presents as a red, swollen, and painful lump on the finger. The skin around the nail may be warm to the touch and there may be drainage of pus. In some cases, the nail may become discoloured or loosened.

Treatment for paronychia typically involves antibiotics or antifungal medications. In some cases, surgical drainage may be necessary.

To prevent paronychia, it is important to keep your hands clean and dry. Avoid biting your nails or picking at your cuticles. If you do get a cut or abrasion on your finger, be sure to clean it promptly and apply a bandage.