This is the second question you've had about trichomoniasis, and the second time you have treated yourself for it without any evidence you are infected. I have to wonder why it concerns you so much, since it causes no important problems in males and in women is generally mild or asymptomatic and not considered serious. (This is actually controversial -- some experts would put more importance on trichomonas than others. However, this is why trich testing is often not routine when screening women for STIs and almost never done in men.) If you were concerned about trich, testing would have been better than treating, and if either were positive, for you both to be treated.You should not have treated yourself unless and until one of you has a positive test for it. But once that decision was made, you should have arranged for both of you to be treated. (Perhaps she is also being treated, but you say nothing about it.)

As for your specific question, there are almost no data on the effectiveness of trich treatment in men. The recommended 2 g dose of metronidazole is little more than an educated guess, and many experts believe that 1 g would be sufficient. So I would suggst you not take any more treatment, and I see no need for you to be tested. However, since you have been treated, it is now reasonable for your partner to be tested, and for you to not have sex with her (even condom protected) until her result is available. Probably it will be negative.

I hope these comments are helpful. Let me know if anything isn't clear.

HHH, MD