Blisters Diagnosis and When to See a Doctor While most blisters are minor and self-diagnosable, certain signs indicate the need for professional medical evaluation, particularly if the blister is unusually painful, widespread, or associated with other symptoms. Read more about blisters diagnosis and when to see a doctor below. Self-diagnosis is typically based on: When to seek medical advice: Diagnostic tools and tests (used in complex or recurrent cases): South African healthcare context: Blisters Diagnosis and When to See a Doctor Knowing when a blister is more than just a friction issue can make all the difference in preventing complications and preserving skin health. 👉 [Next: Treatment and Home Care for Blisters]