Testosterone, PCOS, sebum and the jawline

What is hormonal acne?

Hormonal acne is what people call breakouts tied to androgens, the menstrual cycle, pregnancy, the pill or menopause, which push oil glands into making more sebum. Most acne needs no blood test unless periods are irregular or unwanted hair grows.

When did yours start, or when does it flare?

  1. My flares land just before my period
  2. After starting, stopping or switching the pill
  3. First time in my thirties, forties or near menopause

Not sure hormones are behind it? Scan your face for around thirty seconds, then answer a few questions about your history.

Last reviewed

From hormone to pimple

Every pimple runs through the same four stops. Hormones set the pace.

Androgens
What happens
Androgens such as testosterone rise at puberty in boys and girls, and shift around periods, in pregnancy, with the pill and in PCOS.
Where you see it
Nowhere yet: this step happens in your blood.
Sebum
What happens
Androgens make the oil glands bigger, and bigger glands make more sebum, the skin's natural oil.
Where you see it
Skin that feels oilier than it used to.
Plug
What happens
Sebum and dead skin cells stick together and plug the pore.
Where you see it
Whiteheads and blackheads, often large closed whiteheads in adults.
Inflammation
What happens
Bacteria grow inside the plug and the area swells and turns red.
Where you see it
Deep, tender bumps on the lower face, jawline and neck.

Life stages

Pick your stage.
  • PubertyAndrogens rise in boys and girls and the oil glands grow. Watch for: teen breakouts, more common in boys.
  • Menstrual cycleHormone levels move through each cycle. Watch for: spots in the days before each period.
  • PregnancyPregnancy hormones can bring on acne. Watch for: new breakouts. Ask your doctor before using any acne product.
  • Starting or stopping the pillHormone levels change when you start, stop or switch. Watch for: a flare in the months after.
  • Perimenopause and menopauseHormone levels shift as periods wind down. Watch for: first acne as an adult.
  • PCOS (PMOS)Androgens run higher, often with insulin resistance. Watch for: acne with irregular periods or extra hair.

What "hormonal" means here

Hormonal acne is the everyday name for acne where hormone shifts play a big part. It means hormones are one driver, not a separate disease: the same four steps make every pimple (NIAMS). The pattern of hormonal acne is about place and timing: breakouts along the lower face, jawline and neck that often flare before a period (AAD, DermNet). A doctor can usually tell by looking, with no tests (MedlinePlus).

If this sounds like yours, a face scan can check whether hormones are your likely top cause.

Key Characteristics

The key characteristics of hormonal acne are where it shows up, what the spots look like and when they come.

Common Locations
The lower face, jawline, chin, and neck. Women with acne in this area tend to do well on hormonal therapy (AAD).
Types of Blemishes
Deep, tender bumps, large closed whiteheads, and nodules and cysts, which are deep lumps under the skin. The birth control pill can treat all of these, from blackheads to cysts (AAD).
Cyclical Pattern
Flares that follow the menstrual cycle. In a 2001 study of 400 women, 177 of them (44%) had flares before their period, and these were more common in women over 33.

Common Triggers and Root Causes

A trigger is anything that moves your hormone levels enough to change how much oil your skin makes.

Menstrual Cycles

Hormone levels rise and fall around each period, and that can bring breakouts at the same point every month (AAD).

Puberty and Adulthood

Androgens are hormones, such as testosterone, that make the oil glands bigger. They rise in boys and girls at puberty (NIAMS). About 20% to 40% of women with adult acne first got it as adults (AAD). Breakouts that start or return after 25 are often grouped as adult acne, which has causes beyond hormones as well.

Perimenopause and Menopause

Acne that starts for the first time in adulthood is most common in women going through menopause (AAD).

Birth Control Changes

Starting or stopping the pill can set off breakouts (AAD). The pill helps acne in some women and makes it worse in others, and some IUDs that release medicine can make acne worse too (MedlinePlus).

Stress

Under stress the body makes more androgens, which can make the acne you have worse (AAD).

Medical Conditions

Polycystic Ovary Syndrome (PCOS) is linked to higher androgens and insulin resistance (ACOG). The NHS now calls it polyendocrine metabolic ovarian syndrome (PMOS). Medicines with hormones, corticosteroids or lithium can also cause acne (NIAMS). And many women get acne while pregnant (ACOG).

Men get it too

Hormonal acne is not only a women's problem. Androgens rise in boys at puberty, and teen acne is more common in males, while adult acne is more common in women (NIAMS). Spironolactone is not used for men because of its side effects (AAD).

When it points past the skin

Sometimes acne is one sign of a wider hormone problem, most often PCOS.

Signs that point past the skin
SignWhy it matters
Irregular or missing periodsA main symptom of PCOS (NHS, ACOG).
Hair on the face, chest or bellyCalled hirsutism. It affects more than 7 in 10 women with PCOS (ACOG).
Acne after the teen years that doesn't respond to usual treatmentACOG lists it as a sign of PCOS.
Dark, velvety patches of skin (acanthosis nigricans)A skin sign seen in PCOS (ACOG, DermNet).
Weight gain or trouble losing weightA common PMOS symptom (NHS).

If several of these fit, a doctor may order blood tests for hormone levels and insulin resistance. An ultrasound of the ovaries is only done if you are over 18 (NHS).

What helps

Dermatologists use two hormonal treatments for women: the birth control pill and spironolactone (AAD). Ask your doctor about both. The pill takes 2 to 3 months to show results, and spironolactone needs birth control alongside it because it can cause serious birth defects (AAD).

Spearmint, inositol and zinc are all sold for this pattern; supplements for hormonal acne grades each one by its evidence. Because the flares keep to a timetable, how to prevent hormonal acne plans the routine around your cycle.

Reader questions

How do I know if my acne is hormonal?

Look at place and timing. Spots on the lower face and jaw, flares before your period, or acne that starts or returns as an adult all point that way.

Which hormone causes the most acne?

Androgens, such as testosterone. They make the oil glands bigger, so they make more oil. Girls and women have androgens too, just less.

At what age is hormonal acne the worst?

Acne is most common in teens and young adults. In adult women, flares before a period were more common after age 33 in one study, and acne that starts in adulthood is most common around menopause.

Does hormonal acne go away?

Often it does. Most people are clear by their 30s, though some still get acne in their 40s and 50s. Treatment keeps it in check meanwhile.

Can progesterone cause spots?

It can. Some IUDs that release medicine and some birth control pills can make acne worse. If breakouts began after a change like that, ask your doctor about other options.

Sources

  1. Hormonal therapy for acne, American Academy of Dermatology (AAD)
  2. Acne, NIAMS (NIH)
  3. Adult acne, AAD
  4. Acne: causes, AAD
  5. Acne, MedlinePlus (NLM)
  6. Premenstrual acne flares in 400 women, JAAD, 2001, PMID 11712049
  7. Adult acne, DermNet
  8. Polycystic ovary syndrome (PCOS), ACOG
  9. Skin conditions during pregnancy, ACOG
  10. Polyendocrine metabolic ovarian syndrome (PMOS), NHS
  11. Polycystic ovary syndrome, DermNet

Last reviewed . This page is general information, not a diagnosis. See a dermatologist if your acne is deep and painful, leaves scars, or comes with irregular periods or new hair growth.