Overview
Skin and muscle injections lead to abscesses, scars, and serious infections like wound botulism and tetanus.
Injecting under the skin or into muscle can cause abscesses and scars.
Unclean needles spread infections.
Symptoms
Common signs:
- Sores or lumps at injection sites
- Injecting under the skin or into a muscle (skin popping)
When to get medical care
Causes
Bacteria.
Who is more likely to get it
- People with old, hard-to-find veins: More likely to skin pop
Possible complications
- Skin infection: Abscesses are common
- Tetanus (lockjaw): From dirty injections
Diagnosis
Exam.
Treatment
Lower risk.
Self-care
- Use new sterile supplies
- Don't share
- Keep tetanus shots up to date
- Seek wound care early
Medicines
Medicines that may help:
| Medicine | Helps with | Good to know |
|---|---|---|
| Antibiotics | Infection |
OwieClear doesn't give doses: follow the label or your healthcare professional. Medicine names here are examples, not a full list.
Prevention
To lower your risk or prevent problems:
- Use new, clean needles
Which doctor treats this
- Urgent care or the ER can treat it first. For minor problems, your primary care provider can help.
- They may send you to a dermatologist (skin doctor).
Back to school, work, or sports
- Recovery time varies. Ask your care team when you can drive, lift, work, and exercise.
Children, pregnancy, and older adults
- People who inject drugs: Get free needle services if available.
Outlook
Treatable.
Getting ready for your visit
Bring a list of your symptoms and medicines.
What to bring
- A list of your medicines and supplements
- Notes on when symptoms started and what makes them better or worse
Questions to ask
- Where is a syringe services program?
Research studies
Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.
Sources
Last updated 2026-11-12.