Surname, name added to a “given name” (also called the "first name"). In many cases the surname is inherited and held in common by members of a family. Originally, many surnames identified a person by his connection with another person, usually his father (Johnson, MacDonald); others gave his Contact Microsoft Support.

Understanding the Context

Find solutions to common problems, or get help from a support agent. Acne is a common condition that causes spots or pimples on your skin. Learn more about acne, what causes it and how you can treat acne here. Acne is a skin condition that occurs when your hair follicles become plugged with oil and dead skin cells.

Key Insights

It causes whiteheads, blackheads or pimples. Acne is most common among teenagers, though it affects people of all ages. Effective acne treatments are available, but acne can be persistent. What is acne? Acne is a common chronic disorder affecting the hair follicle and sebaceous gland, in which there is expansion and blockage of the follicle and inflammation.

Final Thoughts

Acne is a very common skin condition that causes pimples. You’ll usually get pimples on your face. Clogged pores cause acne. Teenagers and young adults most often get acne, but it can also occur during adulthood for many people. Treatment is available to clear acne from your skin and prevent scarring. What is acne?

Acne is a common skin disorder that results in blocked skin follicles. Learn the types & causes of acne. Acne is most commonly linked to the changes in hormone levels during puberty, but can start at any age. Certain hormones cause the grease-producing glands next to hair follicles in the skin to produce larger amounts of oil (abnormal sebum).