Brief Answer:
Flare-up of old
herpes infection is also possible
Detailed Answer:
OK.
PAINLESS ulcers without preceding blisters formation, go AGAINST the diagnosis of herpes.
Further, herpes infection is only transmitted sexually. Your female partner's tests being normal, too tends to exclude herpes infection. The opinion is based purely on the information provided by you.
However, a flare-up of an old herpes infection cannot be ruled out. Majority of the people who contact herpes infection, have no or very mild symptoms: they do not even BECOME AWARE OF IT.
Once the virus enters through the skin, it travels along
nerve paths. It may become dormant (inactive) in the nerves and remain there indefinitely.
These dormant viruses become active from time to time. When that happens, the virus travels back along the nerve path to the surface of the skin, where additional virus is shed which cause ulcers on the genitals, with or without preceding blisters formation. The symptoms may occur months or even years after becoming infected.
This possibility may be considered if you had had sexual intercourse with ANY other infected partner, weeks, months or years ago.
However, if you have been sexually active with the same partner for quite some time, possibility of her being infected cannot be ruled out by routine tests. An infected female, but otherwise having no symptoms, can still transmit herpes infection through sexual intercourse. In such cases, Serological tests of the female partner confirms the diagnosis.
If this is the case, you may get a swab test done, which will reveal herpes viruses. Further confirmation can be done by Serological test.
Take care
Dr. Rakesh Karanwal