A Quick Guide to Hypodermic Needle Sizes

Are you curious about hypodermic needle sizes?

Syringing someone with a hypodermic filled with liquid seems easy, but getting it right can be difficult. If the needle size is too wide you can do damage, if it is too small you won't inject anything.

Not only that but if you use needles that aren't right for the job, it can result in ruined parts or burnt hands. 

Needle sizes can be confusing and getting the right gauge is important. Keep reading this article to be guided to all the different hypodermic needle sizes.

Extra Fine

Extra fine hypodermic needles are designed for delicate tissue and shallow injections and are ideal for use with thin, deeply pigmented skin.

They are also useful for blood drawing from small veins. The outer diameter of an extra fine needle is usually 23-25 gauge.

Extra fine hypodermic needles are also typically used for delicate procedures or when a very small needle is needed. These needles are also good when minimal tissue trauma is desired. 

If you are looking for some needles for your syringe, shop here now and get the right sizes of hypodermic needles that you need. 


Fine hypodermic needles are designed for use with syringes that have a Luer-Lok or Luer-Slip connection. These needles have beveled tips and are available in various gauges and sizes. A fine needle is usually 21-23 gauge.

They are designed to be inserted into the skin with minimal discomfort and are often used for procedures such as injections, blood tests, and IV starts.


They are used for routine injections and for drawing fluid from larger veins.

Medium hypodermic needles are typically 18-21 gauge needles. They are used for injecting into large muscles, as well as for subcutaneous injections.

Subcutaneous injections are injections that are given just under the skin. Medium hypodermic needles are also used for some intramuscular injections such as the thigh or buttock.


A coarse hypodermic needle is usually a 17-19 gauge needle. It is thicker and less sharp than a regular hypodermic needle. This type of needle is typically used for injections into muscle tissue or for drawing thick fluids, such as blood.

The main advantage of a coarse needle is that it is less likely to cause pain and tissue damage than a regular hypodermic needle because of the small needle.

Learn the Different Hypodermic Needle Sizes Today

If you're looking for a quick guide to hypodermic needle sizes, this is the article for you. Here, we've compiled a list of the most common needle sizes, so you can easily find the right size for your needs.

It is important to know which hypodermic needle sizes are right for you since there is a wide range of needle gauge and length options you can choose from.

Be sure to always consult a healthcare professional before self-administering any injections. So, what are you waiting for? Get started today and find the perfect needle size for you.

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