it's very hard to detect in males. your partner should also be treated regardless of his test results.
you can get trich from non-sexual means but the odds of that occurring are very, very low.
grace
Hello
TRICH can go undeted with an STD test. and Yes, its possible if both partners have not been with any other partner. It harder to detect in males. The source of the parasite is getting it from an infected person, I've seen reports of getting it from baths' towels but usually its from sex with an infected person. The body does NOT create this parasite.