Also known as Hormonal Acne, Female Acne, Post-adolescent Acne, Late Onset Acne
Adult acne is acne that continues past the ages of 18 to 20 or starts in the early 20s in individuals who may not have had a previous problem with acne. It can occur in men but is more frequently seen in women. Acne vulgaris on the other hand typically affects adolescents.
Many factors interact to cause acne. These include:
It is unclear whether increased levels of male hormone (androgens) in the blood from the adrenal glands or ovaries or tiny amounts of locally produced male hormones stimulate the oil gland to produce more oil or sebum, leading to adult acne.
Adult acne has a similar appearance to acne vulgaris with whiteheads, blackheads, pustules, papules, nodules or cysts occurring on the face and less frequently on the back and chest. The post- inflammatory healing phase with redness or brown hyperpigmentation is also seen.
Many women affected with adult acne experience a flare-up of their acne the week prior to their menstrual cycle.
Acne lesions are often tender, long lasting and may recur in the same areas. The lower cheeks, jawline and neck are often affected but pimples and blackheads may be seen in all the areas that are are involved in adolescent acne.
Most women with adult acne do not have increased male hormone as the main reason for their acne. However, your dermatologist will evaluate whether there is clinical evidence of increased hair growth, male pattern scalp hair loss, irregular menstruation, problems with infertility or signs of insulin resistance.
Some medications may precipitate or aggravate acne.
A medical history and physical examination will guide any further blood or imaging investigations that may be needed to evaluate suspected hormonal abnormalities or signs of insulin resistance. In some cases, an ultrasound may be needed to look for polycystic ovaries.
Treatment is the same as for acne vulgaris. Often a combination therapy with both topical and oral agents is used. Avoiding heavy cosmetics is advised.
Hormonal treatments with oral contraceptive or hormone blocking agents such as spironolactone or cyproterone actetate that reduce the effect of androgens are often prescribed.
For treatment resistant cases, long-term low dose oral isotretinoin has been used by specialist dermatologists.
Adult acne may start in the 20s and women often describe having “good skin” at school. It may also be persistent from adolescence.
This type of acne may fluctuate with stress or the menstrual cycle. It may remain active for many years into the 30s and 40s.
This information has been written by Dr Jo-Ann See
Updated 28 October 2015
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