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.
STD symptoms: Common STDs and their symptoms. Learn about common and possible STD symptoms and how serious they might be. If you have sex â oral, anal or vaginal intercourse and genital touching â you can get an STD, also called a sexually transmitted infection (STI).igns and symptoms may include: 1  Clear, white, greenish or yellowish vaginal discharge. 2  Discharge from the penis. 3  Strong vaginal odor. 4  Vaginal itching or irritation. 5  Itching or irritation inside the penis. 6  Pain during sexual intercourse. 7  Painful urination.