It's a generalized term to describe a breakout caused by a blockage of the pores, but acne actually presents itself in a number of different ways. The severity of the different forms of lesions varies, but some are more likely than others to lead to lasting effects. All require common sense in treatment, however, and some are more likely to require medical attention.

Since acne is more complex than it might seem, the condition comes with its own vocabulary. It's important to understand what's what to be able to properly treat breakouts if and when they happen.

All types of breakouts can be clumped together using a single term: acne lesion. This generalization works for describing blackheads, whiteheads, cysts and even nodules. But what are each of these things?

Comedones are the least severe of the acne lesions. They include blackheads and whiteheads. These form when a sebaceous follicle gets plugged with sebum (oil and gunk), dead cells, hair and sometimes even bacteria. An open comedo is called a blackhead because the sebum is discolored and visible. A closed comedo is a whitehead; or a traditional pimple. The whitehead looks different because the pore is closed and inflamed. Neither of these should be picked, scratched or forced open as they can lead to infection and scarring.

A papule is a different kind of acne lesion that's generally elevated and typically pretty small. When grouped, they are pretty visible. These typically don't have a visible "head." These should never be smashed or squeezed or the potential for permanent scars will present itself.

Pustules are generally dome like in shape and are filled with pus. If these don't progress to cyst form and heal on their own, they tend not to scar. It's important to not pop or smash these although it's sometimes difficult not to do so during routine cleansing.

Nodules are similar to papules in appearance, but these are generally more inflamed and go deeper into the skin. These can be very painful and are typically associated with scarring. It's typically suggested these be treated by medical professionals or at least with good topical products meant to handle more severe breakouts.

Cysts are generally the largest of the acne lesions and are responsible for pain and scarring. When these and nodules are present, it's generally recommended that medical attention be sought to minimize the effects.

Acne presents itself in many forms. The condition might be best known for simple "pimples," but in reality, there's nothing simple about acne.