Final answer:
Vaginal candidiasis, bacterial vaginosis, and trichomoniasis are common infections in the vagina with distinct causes and symptoms.
Step-by-step explanation:
Vaginal candidiasis, bacterial vaginosis, and trichomoniasis are all common infections in the vagina. Vaginal candidiasis, or a yeast infection, is caused by an overgrowth of yeast cells. Bacterial vaginosis is caused by an imbalance in the vaginal microbiota, while trichomoniasis is a sexually transmitted infection caused by the parasite Trichomonas vaginalis. Each of these infections has its own symptoms and treatment options.