How many grades of acne are typically recognized?

The typical classification of acne recognizes four grades, each corresponding to the severity and type of acne lesions present. The four grades are:

1. Grade I: This represents mild acne, often characterized by a few comedones (blackheads and whiteheads) and minimal inflammation.
2. Grade II: This stage is moderate acne, which includes more comedones and some inflammatory papules and pustules.
3. Grade III: This grade indicates moderately severe acne, featuring numerous inflammatory lesions, with pustules and possible nodules.
4. Grade IV: The most severe form of acne, often classified as cystic acne, presents with numerous large, painful cysts and widespread inflammation.

Understanding these grades is essential for estheticians to evaluate the client's skin condition adequately and provide appropriate treatments. By identifying the grade of acne, professionals can tailor their approach, whether it involves skincare products, treatments, or referrals to dermatologists when necessary.