Yeast infections are a source of discomfort for many women, but sometimes the symptoms of yeast infections are a sign of something more serious. Potentially severe vaginal infections with symptoms similar to those of a yeast infection include bacterial vaginosis, a condition caused by abnormal bacterial growth in the vagina; and trichomoniasis, a parasitic infection. Both of these conditions require antibiotics from a doctor. Self-treating these conditions with a yeast medication may delay getting the right diagnosis and an effective treatment. Fortunately, at-home tests can help women learn what to look for and determine whether their discomfort is indeed caused by a yeast infection or by something else that requires a doctor visit and prescription medication to resolve. A vaginal health test kit is available over the counter at most pharmacies. The test measures the acidity of vaginal discharge using a hand-held detector with a tip resembling a cotton swab. The tip is designed to d...