looks like irritation if youve just shaved
i was getting these exactly the same all last summer, but around my waist area and sides, it took me ages and ages to get anywhere i had to see about 3 sexual health clinics, had every test under the sun, went to 2 different gps, and 2 dermatologists, i then saw a professor of dermo who told me it was a fungal infection and i needed to start washing this this this twice a day. octenisan wash 500ml its around £5.00 here, i am in the uk and we can buy this over the counter here, not sure where you are. wash in, waist and groin once a day for a month, and it will clear. amazing stuff :), i still continued to use it.
so it isnt a STd?