hi sir
recently i has unprotected sex with my girl friend who is mothr of 2 kids and is from a good family.after 17 days i noticed smalll ulcers at the tip of my penis.on the same time i got tested my self and her for VDRL and TPHA.both reports were normal of both of us.what it should be.why i have got such problem.any pathological reason .kindly guide me.