Hormonal acne v bacterial acne

It can be frustrating trying to understand why acne keeps appearing. While many people think it is simply caused by bacteria, the reality is often more complicated, with the two common causes being hormonal and bacterial. Although the two types of acne can look similar, they develop for different reasons and may respond to different treatments.

We know that acne develops when hair follicles become blocked with oil, dead skin cells and debris. This creates an environment where inflammation can occur and bacteria may multiply. However, not every spot is caused by bacteria alone.

What is hormonal acne?

Hormonal acne is linked to changes in hormone levels, particularly androgens. These hormones can increase oil production in the skin, making pores more likely to become blocked.

Hormonal acne often appears around the lower face, jawline, chin and neck. It may become worse at certain times of the month, during pregnancy, around menopause or during periods of stress.

The spots are often deeper, more inflamed and can feel tender or painful. Some people notice that their skin remains relatively clear elsewhere while breakouts repeatedly occur in the same areas around the jaw and chin.

What is bacterial acne?

Bacterial acne on the other hand involves the growth of bacteria within blocked pores. Bacteria naturally live on the skin, but when it multiplies inside blocked follicles it can contribute to inflammation and redness.

This type of acne may appear across the forehead, cheeks, nose and chin. Whiteheads, blackheads, papules and pustules are all common and unlike hormonal acne, there may not be an obvious pattern linked to hormone fluctuations.

It is important to remember however, that acne is rarely purely hormonal or purely bacterial and, in many people, both factors play a role.

Why a diagnosis matters

Understanding the cause of acne can help explain why certain treatments work better than others. For example, hormonal acne may obviously respond best to treatments that target hormones, while bacterial acne may respond to treatments that reduce inflammation and bacterial growth.

Because acne can have several contributing factors however, treatment plans need to be specific to the person.

Final thoughts

Hormonal acne and bacterial acne can look similar, but they develop for different reasons. Hormonal acne often affects the jawline and chin and may follow hormonal changes, while bacterial acne is more closely linked to inflammation within blocked pores.

If your acne keeps returning despite trying different products, understanding the underlying cause may be an important step towards finding the most suitable personalised treatment.