A puncture wound is a forceful injury caused by a sharp, pointed object that penetrates the skin. A puncture wound is usually narrower and deeper than a cut or scrape. Many people accidentally get puncture wounds with household or work items, yard tools, or when operating machinery. Most puncture wounds are minor, and home treatment is usually all that is needed.

Sharp objects, such as nails, tacks, ice picks, knives, teeth, and needles, can all cause puncture wounds. Puncture wounds increase your risk for infection because they are difficult to clean and provide a warm, moist place for bacteria to grow.

Some punctures are done for health reasons. For example, a puncture may be used by a doctor to draw blood or to give fluid or medicines directly into a vein (intravenous, or IV).

Health professionals have an increased risk for needle-stick injuries. A puncture from a used needle increases the risk of infection or for transmitting a blood-borne disease, such as hepatitis or human immunodeficiency virus (HIV). Home treatment may be all that is needed for puncture wounds from clean needles.

When you have a puncture wound:

• Determine whether any part of the object that caused the wound is still in the wound, such as a splinter or lead (graphite) from a pencil.
• Determine whether underlying tissues, such as blood vessels, nerves, tendons, ligaments, bones, joints, or internal organs, have been injured by the object.
• Clean the wound and remove any dirt or debris to prevent infections, both bacterial skin infections and tetanus ("lockjaw").
• Determine if you need a tetanus shot.

Review the Emergencies and Check Your Symptoms sections of this topic to determine if and when you need to see a doctor.