- Female
- 14 Years
- 23/01/2025
I'm really worried because I hit my ankle pretty hard on something metal, and now it really hurts when I walk or put any pressure on it. The pain is mostly right under the ankle bone. Should I be concerned about this type of injury, and what should I do to help it heal?
Answered by 1 Apollo Doctors
ASO (Antistreptolysin O) Titer Positive
What is ASO?
- Antibody test: Measures antibodies against streptolysin O, a toxin produced by Group A Streptococcus (GAS) bacteria.
Why is ASO positive?
- Recent strep infection: Your body responded to a recent GAS infection, producing antibodies.
- Post-streptococcal complications: Positive ASO can indicate conditions like Rheumatic Fever (RF) or Post-Streptococcal Glomerulonephritis (PSGN).
How does it happen?
- Strep infection: GAS bacteria infect the throat or skin, triggering an immune response.
- Antibody production: Your body produces ASO antibodies to fight the infection.
Effects on the body
- Joint pain and inflammation: As you've experienced, joint pain can be a symptom.
- Rheumatic Fever (RF): A potential complication, RF can lead to heart valve damage, arthritis, and skin nodules.
- Kidney damage: PSGN can cause kidney inflammation and damage.
Seriousness
- Monitor and manage: While ASO positivity indicates a recent strep infection, it's essential to monitor for potential complications.
- Consult your doctor: Discuss your test results and symptoms with your doctor to determine the best course of action.
Dr. Dr Khaleel Suggests...
Consult a Orthopaedician
Answered 04/07/2025
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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.





