- The skin is punctured by a pointed narrow object
Causes of Puncture Wounds
- Metal: nail, sewing needle, pin, tack
- Pencil: pencil lead is actually graphite (harmless). It is not poisonous lead. Even colored leads are not toxic.
- Wood: toothpick
Complications of Puncture Wounds
- Retained Foreign Object. This happens if part of the sharp object breaks off in the skin. The pain will not go away until it is removed.
- Wound Infection. This happens in 4% of foot punctures. The main symptom is spreading redness 2 or 3 days after the injury.
- Bone Infection. If the sharp object also hits a bone, the bone can become infected. Punctures of the ball of the foot are at greatest risk. The main symptoms are increased swelling and pain 2 weeks after the injury.