An insulin syringe is a medical instrument that expressly designed to administer insulin into the body via injection. It has a short, fine needle attached to it that breaks the surface of the skin, and a pump that, when released pushes and deposits insulin, a hormone secreted by the pancreas into the body. Insulin syringes make up an important part of modern health care for diabetics suffering from both Type 1 and Type 2 diabetes, but they must be used in exact accordance with FDA rules and regulations so as to avoid running the risk of various blood-borne diseases, such as HIV, AIDS, or Hepatitis, etc. For this reason it is extremely important to note that insulin syringes are only meant to be used a single time, before being safely disposed of.