Splinters: Splinters are foreign bodies that are partially or fully embedded in the skin. Splinters usually are wood, but metal, glass, and even plastic materials may be considered a splinter. Most splinters can be removed without seeking medical care. Some splinters may be deep in the skin and require seeking medical care.
Puncture Wound A puncture wound is caused by an object piercing the skin such as nails, glass, pins, or other sharp objects. A puncture wound can become infected if not treated properly. A tetanus booster may be necessary for some puncture wounds.