Thanks for the query.
I understand your concern.
According to your description the bumps you mentioned could be clogged sebaceous or sweat glands.
Keeping the area dry and clean, using well-fitted cotton inner wear etc may avoid the lesions.
If they recur repeatedly, better to consult your doctor once and get evaluated. And also check for your blood sugar levels once.
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.