Where should I inject my insulin?

There's no single "best place" on your body for an injection. There are a few suitable areas on your body, and each has room for several sites. Since you'll be getting several shots each day, you'll need to switch between areas and sites to keep scar tissue from building up.

Suitable areas for injecting insulin include: abdomen, back of the upper arms, thighs, and buttocks.
Pauline Shipley, MD
Endocrinology Diabetes & Metabolism
Try to use the abdomen and inject two inches between spots on a rotating basis. You should be getting back to the original injection spot no sooner than every four or five days.
The place on your body where you inject insulin affects your blood glucose level. Insulin enters the blood at different speeds when injected at different sites. Insulin shots work fastest when given in the abdomen. Insulin arrives in the blood a little more slowly from the upper arms and even more slowly from the thighs and buttocks. Injecting insulin in the same general area (for example, your abdomen) will give you the best results from your insulin. This is because the insulin will reach the blood with about the same speed with each insulin shot.

Don't inject the insulin in exactly the same place each time, but move around the same area. Each mealtime injection of insulin should be given in the same general area for best results. For example, giving your before-breakfast insulin injection in the abdomen and your before-supper insulin injection in the leg each day give more similar blood glucose results. If you inject insulin near the same place each time, hard lumps or extra fatty deposits may develop. Both of these problems are unsightly and make the insulin action less reliable. Ask your health care provider if you aren't sure where to inject your insulin.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.