Your medical history, which will include questions about your
sexual history and practices.
A physical exam.
For women, this will include a visual
exam of the genitals, vagina, or cervix to detect patchy red spots that are
caused by trich. Any vaginal discharge will be assessed for color, odor, and
texture. A sample of discharge is taken for a wet mount test.
For men, this will include a visual
exam of the penis and a sample of discharge from the
urethra or a urine sample.
Tests to identify the trich organism.
The most common test for women is a
wet mount, a microscopic evaluation of fluid from the
Other tests available but less commonly used include:
Antigen detection test (immunochromatographic strip test)
that detects trich.
Amplified DNA probe test, which detects genetic material (DNA) of the trich
People can get other
sexually transmitted infections (STIs), such as
syphilis, at the same time they get a trich infection.
If one STI is diagnosed, you will likely be tested for other STIs so that all
infections can be treated at the same time.
In women, the trich
parasite may also be identified by a routine
Pap test done as part of a regular gynecologic exam.
Expert opinions vary on the accuracy of a Pap test for diagnosing trich. But if
a Pap test shows trich, your doctor will probably talk to you about treatment
or maybe other tests.