Many kits consider a change from yellow/light orange to pink/red within 24 hours as positive. Some specify orange to pink as positive, and lighter shades (like pale pink or orange) can occur, but stronger pink/red is more definitive.In your case:
It turned orange after 12 hours → this could be an early or partial change (some kits interpret orange as part of the positive spectrum).
Then pink after 24 hours → this is generally considered a positive result for H. pylori, especially since the change happened within the standard 24-hour reading window (not after 24 hours, which could be less reliable or false positive from other bacteria).
Answered2026-02-06 13:58:43
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