Vaginal infections. Help for infections. If you have pain, itching, or other symptoms around your vagina, donât try to treat them yourself. Donât risk your health. See a doctor or other health care professional who can figure out the cause and right treatment.Signs that you may have a vaginal infection include itching, burning, pain in or around your vagina, or a problem with your vaginal discharge (fluid).aginal infections. Help for infections. If you have pain, itching, or other symptoms around your vagina, donât try to treat them yourself. Donât risk your health. See a doctor or other health care professional who can figure out the cause and right treatment.
Hydrogenation â to treat with hydrogen â is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum. The process is commonly employed to reduce or saturate organic compounds. Hydrogenation typically constitutes the addition of pairs of hydrogen atoms to a molecule, often an alkene. Catalysts are required for the reaction to be usable; non-catalytic hydrogenation takes place only at very high temperatures.
home / medterms medical dictionary a-z list / pigmentation definition Medical Definition of Pigmentation Pigmentation: The coloring of the skin, hair, mucous membranes, and retina of the eye. Pigmentation is due to the deposition of the pigment melanin, which is produced by specialized cells called melanocytes. Other pigment-related terms include hyperpigmentation (too much pigment), hypopigmentation and underpigmentation (too little pigment), and depigmentation (loss of pigment).