Generally a negative sialidase test indicates that the patient does not have bacterial vaginosis or has cured it, but there is a possibility of false negatives. Sialidase is one of the tests used in the examination of vaginal secretions in women. When a female patient has never been infected with bacterial vaginosis, the test result for salivary acid glycosidase is negative. If the patient has been infected with vaginitis and after a series of treatments the symptoms disappear and the disease is cured, then the salivary acid glycosidase will also be negative. However, if there is a bacterial infection in the organism, and if a lot of water is consumed when performing the salivary acid glycosidase test, the salivary acid glycosidase will be diluted and a false negative will occur. False negatives can also occur if the temperature during the test is too high or too low. It is recommended that the results of the test should be analyzed by a professional doctor in conjunction with your own symptoms and test results to determine a standardized treatment method.