GetTested’s 4-in-1 STI Test (Chlamydia, Gonorrhoea, Mycoplasma & Syphilis) is a discreet at home STI test for people who want broader sexual health screening after unprotected sex, a new partner, multiple partners, travel or possible exposure. This test screens for chlamydia, gonorrhoea, Mycoplasma genitalium and syphilis, giving broader coverage than testing for one infection alone. Many STIs can cause mild symptoms or no symptoms at all, which means you may not know if something is present unless you test.