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What Angle Do You Inject in Skin?

Published in Injection Techniques 2 mins read

The angle at which you inject into the skin depends on the amount of fatty tissue present.

Generally, injections are administered at a 90-degree angle when there is sufficient subcutaneous tissue. However, if there is not much fatty tissue, a 45-degree angle is recommended.

Injection Angles Explained

Here's a breakdown:

Angle Description When to Use
90-degree Needle is inserted straight down, perpendicular to the skin surface. When there is a good amount of fatty tissue that can be pinched between fingers.
45-degree Needle is inserted at a slant, halfway between horizontal and vertical. When there is little fatty tissue available for injection.


How to Inject (According to Reference)

The reference states that to inject medication:

  • Pinch about an inch (2.5 centimeters) of skin and fatty tissue with your non-dominant hand.
  • Insert the needle all the way into the pinched skin at either a 90-degree angle (if there's sufficient fatty tissue) or a 45-degree angle (if there is not much fatty tissue).


Important Notes

  • It is crucial to consult a healthcare professional for specific injection guidance.
  • These angles ensure the medication is deposited into the subcutaneous tissue rather than the muscle.
  • Correct injection technique prevents injury and ensures the medication is absorbed as intended.

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