Status Report From the American Acne & Rosacea Society on Medical Management of Acne in Adult Women, Part 1: Overview, Clinical Characteristics, and Laboratory Evaluation

Scarring

Acne scarring has been noted to affect up to 
three-fourths of adult women in one report¹⁷ and 
often is stated by patients to be a cause of concern 
and frustration.^1,5,17

Perimenstrual Flaring

Flaring associated with menses is commonly reported in adult females with AV, with 56%, 17%, and 
3% of women in one study (n=230) reporting worsening before, during, or after menses, respectively.²¹

External Factors

Comedogenic products used for skin care, cover-up makeup, or hair care may be important to consider in selected cases as potential etiologic or exacerbating factors in adult females with AV; they also may be used in the management of AV.^23-25 Adult females often are perplexed and frustrated by the presence of AV after their 
teenaged years and anxiously wonder about or search for the potential causes. Many women use cosmetic products to cover up facial AV.^5,23-25 Therefore, even if skin care or personal hygiene products or makeup are not believed to be an etiologic factor, many patients appreciate that their dermatologist addressed skin care and cosmetics as a component of AV management and provided appropriate recommendations.^5,13

Ingestion of dietary supplements containing whey protein have been associated with precipitation of AV.^26,27 Diets with specific content characteristics have been implicated as potential etiologic or exacerbating factors for AV; however, data are limited and specific recommendations remain elusive at present. Individual cases may warrant consideration of dietary factors, especially when treatment resistance is noted.²⁸ Importantly, progestin-only contraceptives (ie, injectables, intrauterine devices) also can exacerbate or induce AV.²⁹

Hyperandrogenism

Although most adult females with AV are reported to have normal serum androgen levels when tested, it is important to explore potential signs and symptoms that are suggestive of underlying hyperandrogenism through both the patient’s history and physical examination.^{9-11,21,29-33} Some investigators have suggested that underlying peripheral hyperandrogenism is the leading cause of AV in adult females, 
with or without concurrent polycystic ovarian syndrome (PCOS), though it is believed that most women with AV exhibit normal results when 
undergoing laboratory testing for androgen excess.^{10,11,21,29,30} Nevertheless, it is important to consider the possibility of underlying causes of androgen excess (Table 2), the most common being PCOS and late-onset congenital adrenal hyperplasia; an androgen-secreting tumor is less common.^11,29-33 It is suggested that screening for underlying endocrinopathy should be conducted in women presenting with (1) AV recalcitrant to conventional treatment, (2) sudden emergence of severe AV, 
(3) concurrent signs/symptoms of androgen 
excess, and/or (4) AV relapse shortly after isotretinoin therapy.^7,11,16,33

Hirsutism and acanthosis nigricans have been reported to be more reliable predictors of hyperandrogenism than androgenic alopecia.²¹ Although it may be subtle in some cases, acanthosis nigricans is harder to camouflage, so the clinician can usually detect it if a thorough physical examination is performed. However, a patient may not voluntarily report to the clinician and their staff that she has hair removed, so despite a thorough examination, the clinician may not detect hirsutism. Therefore, it is important to inquire directly about the presence of hairs (pigmented terminal vs “peach fuzz” hairs), their anatomic location, and any hair removal practices the patient has used. The absence of androgenic alopecia does not exclude underlying hyperandrogenism; however, its presence, especially in younger women, may serve as a clinical marker for underlying hyperandrogenism.⁵ Some women may camouflage more subtle alopecia through hairstyling, but obtaining this history usually is not problematic, as most women are distressed by any degree of hair loss.

Laboratory Evaluation—A relatively straightforward approach to the workup of androgen excess includes assessment of serum DHEAS, free testosterone, and total testosterone levels.^10,30 Elevation of serum DHEAS levels indicates an adrenal source of androgen production. Elevation of testosterone is associated with excess androgens 
produced by the ovaries. Modest elevations of 
DHEAS are most commonly associated with late-onset congenital adrenal hyperplasia that may not have been previously diagnosed. Modest elevation 
of testosterone is most commonly associated with PCOS, which also can be accompanied by an 
elevated luteinizing hormone:follicle-stimulating hormone ratio of 2.5:1 to 3:1.^10,30 Marked elevations of DHEAS or testosterone can be indicative of adrenal or ovarian tumors, respectively.³⁰

In some cases, a woman might have 
elevated DHEAS and testosterone levels. A 17-hydroxyprogesterone test can help discriminate between an adrenal or ovarian source of 
androgen excess in these cases, as elevated 
17-hydroxyprogesterone levels indicate that the androgens are coming from the adrenal gland.^10,30

It is important that laboratory evaluation be performed when ovulation is not occurring. Blood tests can be drawn just prior to or during menses. It is important that a woman is not taking an oral contraceptive at the time of testing, which can mask an underlying endocrine abnormality.^10,11,29,30 Generally, testing can be performed at least 4 to 6 weeks after stopping the oral contraceptive.