What are the differences between normal types of vaginal discharge and abnormal types of vaginal discharge?

Vaginal discharge: Clear/stretchy d/c occurs w ovulation, clear/watery or white d/c both occur during menstrual cycle.*greenish yellow w bad odor; white, gray or yellow w fish-like odor; clumpy white w/o an odor, clumpy green or yellow are all types of d/c which can occur with infections.*brown discharge often contains older, deoxygenated blood ; may be seen after the period.* a clumpy (cottage cheese- like), >.