Thank you for writing to us.
Yes, this could be an STD or it could be an injury that has caused blisters to appear. You need to see a Doctor and get an STD panel done to help you.
The STD panel can help you confirm if you have an STD or not. And there is no other way to be completely sure.
All the best.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.