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?

Dr Dr Khaleel Ur Rahim

General Practitioner

• MBBS
• 1+ Yrs

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ASO (Antistreptolysin O) Titer Positive

What is ASO?

1. Antibody test: Measures antibodies against streptolysin O, a toxin produced by Group A Streptococcus (GAS) bacteria.

Why is ASO positive?

1. Recent strep infection: Your body responded to a recent GAS infection, producing antibodies.
2. Post-streptococcal complications: Positive ASO can indicate conditions like Rheumatic Fever (RF) or Post-Streptococcal Glomerulonephritis (PSGN).

How does it happen?

1. Strep infection: GAS bacteria infect the throat or skin, triggering an immune response.
2. Antibody production: Your body produces ASO antibodies to fight the infection.

Effects on the body

1. Joint pain and inflammation: As you've experienced, joint pain can be a symptom.
2. Rheumatic Fever (RF): A potential complication, RF can lead to heart valve damage, arthritis, and skin nodules.
3. Kidney damage: PSGN can cause kidney inflammation and damage.

Seriousness

1. Monitor and manage: While ASO positivity indicates a recent strep infection, it's essential to monitor for potential complications.
2. Consult your doctor: Discuss your test results and symptoms with your doctor to determine the best course of action.

Answered 04/07/2025