What condition is indicated by malodorous, frothy, yellowish-green discharge with pruritus?

The condition indicated by malodorous, frothy, yellowish-green discharge accompanied by pruritus is trichomoniasis, caused by the parasite Trichomonas vaginalis. This organism often leads to characteristic symptoms, including a strong foul smell to the discharge and an irritation or itching in the vaginal area. The discharge associated with trichomoniasis is typically frothy and ranges in color from yellow to green, making these symptoms quite distinctive.

In contrast, bacterial vaginosis typically presents with a thin, grayish discharge that has a fishy odor, while candidiasis usually involves a thick, white, curd-like discharge with significant itching but without a strong odor. Chlamydia may result in vaginal discharge and other symptoms but does not typically produce the frothy, yellowish-green discharge that trichomoniasis does. Thus, the combination of malodorous, frothy, yellowish-green discharge and pruritus is most accurately associated with trichomonas infection.