When the solid has a high affinity for water - in which case it is called hydrophilic (high energy e.g. glass)- water spreads. In the opposite case of hydrophobic (low energy e.g. teflon) surfaces, water does not spread but, instead, forms at equilibrium a spherical cap resting on the substrate with a 'contact angle'.
Infections such as trichomoniasis, gonorrhea, and Chlamydia (all STDs); and yeast infection can all cause vaginal discharge. Vaginal discharge can be associated with other symptoms such as burning or itching. Antibiotics are given for infections that cause vaginal discharge.
Key Facts. 1  Itâs normal to have a white/yellow vaginal discharge that does NOT have an odor (smell). 2  Vaginal odor, itching, burning, pain and/or a different discharge are symptoms of an infection. 3  If you have any symptoms of a vaginal infection, call your health care provider. Itâs normal to have a white/yellow vaginal discharge that does NOT have an odor (smell). 2  Vaginal odor, itching, burning, pain and/or a different discharge are symptoms of an infection. 3  If you have any symptoms of a vaginal infection, call your health care provider.