Nature: Acne pimples occur when the immune system detects the clump (comedone) of skin cells blocking a pore, trapping oils inside the skin, and also trapping some bacteria. The bacteria and oils leak into the skin, causing a reaction in which the immune system sends white blood cells in to push all of the stuff out of the body. After the pimple ruptures, it heals but imperfectly, leaving little scars.
Answered 8/18/2019
2.9k views
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question