Localized skin inflammation as a result of overactivity of the oil glands at the base of specialized hair follicles. Acne happens when oil (sebaceous) glands come to life around puberty, when these glands are stimulated by male hormones that are produced in the adrenal glands of both boys and girls.
The oil glands, which are located just beneath the skin, continuously produce and secrete oil through openings in the skin. The oil lubricates and protects the skin. Under certain circumstances, cells that are close to the openings of the oil glands block the openings. This causes a buildup of oil underneath the skin.
Bacteria, which live in everyone’s skin but generally mind their own business, feast on this oil, multiply, and cause the surrounding tissues to become inflamed if the follicle ruptures.
If the inflammation is right near the surface, you get a pustule; if it’s deeper, a papule (pimple); deeper still and it’s a cyst. If the pore of the affected hair follicle is closed to the surface, the result is a ” whitehead.” If the pore is wide open, oil becomes oxidized (that is, acted on by oxygen in the air), the oil changes from white to black, and the result is a “blackhead.”
Acne is also referred to as pimples.
- Acne rosacea
mainly the forehead, the chin, and the lower half of the nose. The tiny blood vessels in these areas enlarge (dilate) and become more visible through the skin, appearing like tiny red lines (telangiectasias). Pimples that look like teenage acne can occur. Rosacea occurs most often between the ages of 30 and 60, especially in […]
- Acne vulgaris
The common form of acne, in teens and young adults, that is due to overactivity of the oil (sebaceous) glands in the skin that become plugged and inflamed. Acne typically develops when the oil glands come to life around puberty and are stimulated by male hormones that are produced in the adrenal glands of both […]
- ACOG (Amer College of Ob & Gyn)
ACOG (Amer College of Ob & Gyn): The American College of Obstetricians and Gynecologists is an organization concerned with the quality of OB/Gyn practice in the U.S. It is called “a cog.” The members of ACOG are “Women’s Health Care Physicians.” ACOG is (in their own words) “the nation’s leading group of professionals providing health […]
Acou-: Combining form relating to hearing. As in acoustic, otoacoustic emission test, and presbyacousia.
Acoustic: Having to do with sound or hearing. The acoustic nerve (the 8th cranial nerve) is concerned with hearing and the sense of balance and head position. An acoustic neuroma is a benign tumor on the acoustic nerve.