Hi - in your previous threads about bumps or lesions that you've seen in your groin or on your penis, you have been advised that they need to be evaluated by a doctor, in person, to determine the cause. Please do not continue to ask our members to diagnose the cause of your bumps/lesions. If they concern you, see a doctor for diagnosis.
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This does not sound like an STI.
Blocked pore sounds more likely, but not STI related.