Mild swelling, bruising, or slight discomfort can sometimes occur after an injection, and this usually settles within a day or so.
It’s normal to have a bit of inflammation or a small lump under the skin after injecting. This can happen for several reasons, such as:
- Injecting in or near the same spot repeatedly
- The amount or thickness of the medication
- Injecting too quickly
- Needle size or reusing needles
- Mild irritation or sensitivity at the site
These lumps are usually harmless and can take anywhere from a few weeks to a few months to fully disappear.
You should contact us (and your GP) if you notice any of the following:
- The lump is hot or red, raised, or painful
- You have fever or chills
- There is pus or drainage from the site
These can be signs of an infection and need to be reviewed promptly.
Lumps are more common with subcutaneous (under the skin) testosterone injections, but are less likely with HCG, which is thinner.
If you’re noticing lumps after testosterone injections, please let us know as it might be worth switching to intramuscular injections, which tend to cause fewer site reactions.
If you prefer to continue subcutaneous injections, try the following tips to help reduce lumps:
- Use the correct needle size (27G or 29G)
- Inject slowly and steadily
- Gently massage the area after injecting
- Rotate injection sites each time
If you’d like a refresher on your injection technique, you can book another Injection Training Video Call