Cause of pain or swelling when inject testosterone into the delts muscle

Common injection sites for testosterone include Delts, thigh and gluteus. What might be the cause of pain or swelling when inject testosterone in delts?

Normal reaction

Pain or swelling at the injection site is a common occurrence for novice testosterone injections. Most of the time, the reaction after injection is mild, lasting only 1-2 days. Cold compresses can help relieve pain, redness, and swelling.

The normal injection pain response will greatly relieve as you gradually adjust to the corresponding testosterone ester. It is also related to placebo effect and injection technique and proficiency.

Allergy or inflammation

Testosterone injection dissolved in oil, and the user is allergic to the oil used or the corresponding testosterone, and will also experience injection pain or swelling. In this case, you can change the testosterone oil or replace with another testosterone ester (e.g., from test E to test P).

Needle length

The default recommend needle length is not suitable for everyone, and if the needle is too long (such as a 1.5 inch needle), it can cause unnecessary pain if it inserted too deeply during the injection process. Commonly used needles are 1 inch or 1/2 inch.

Underweight

In underweight people, there is little fat or muscle tissue, so a normal needle injected at the delts site can go deep and cause unnecessary pain. For underweight people, when choosing the injection location, they should avoid delts and choose gluteus or thigh.

Musculess

When you have not gained enough muscle, the muscle in the delts position does not show up well, and you choose to inject in the delts position. The needle can mislocate the muscle and inject into other areas, such as fascia, nerves, or blood vessels, causing local irritation, inflammation, or damage that can manifest as pain, swelling, redness, and even infection at the injection site.

For people with too little muscle mass, injection in the delts position is more difficult, and we can choose the gluteus or thigh position, which is relatively easy to inject. Wait until the muscles have grown to a certain extent before choosing the delts position.

Overinjection

When too much oil is injected in one place at a time, there is also a corresponding injection discomfort, including pain and swelling. The dosage of each injection should not exceed 0.5ml.

Testosterone injection is mainly divided into SubQ and IM, of which SubQ injection location is shallow, can use a smaller size of the needle, so it is less prone to injection pain and injection into other pain-prone tissues. For beginners, SubQ injections are more convenient.