Which abnormal vaginal discharge is characterized by a green-yellow, malodorous alkaline appearance and is associated with red cervix upon examination?

The abnormal vaginal discharge that presents as green-yellow, malodorous, and alkaline, along with a red cervix upon examination, is characteristic of an infection caused by Trichomonas vaginalis. This sexually transmitted protozoan infection often leads to a frothy, foul-smelling discharge that is typically worse after sexual intercourse.

The alkaline nature of the discharge is notable because it can disrupt the normal acidic pH of the vagina, contributing to the characteristic odor as well. The presence of a red cervix is a sign of cervicitis, which commonly accompanies infections by Trichomonas.

In contrast, vulvovaginal candidiasis typically causes a thick, white, curd-like discharge and is not associated with an alkaline pH or a malodorous quality. Gonorrhea might cause a purulent discharge but is more usually associated with a yellow or green discharge and does not typically present with a distinctive alkaline odor. Bacterial vaginosis usually features a thin, gray discharge with a fishy odor, but it doesn’t present with an inflamed red cervix or significant discomfort in the same manner as a Trichomonas infection would.

Thus, the symptoms and characteristics distinctly align with Trichomonas