What causes hormonal acne
What causes hormonal acne is mostly androgens, hormones that make oil glands bigger and busier. Puberty, periods, pregnancy, menopause, the pill, PCOS and stress can all shift them, which is why breakouts come and go.
Wish your skin stopped flaring on the same days every month?
- Track it
- Mark your breakout days for two or three cycles.
- Read the pattern
- Flares before a period, along the jaw and lower face, point to hormones.
- Check the rest
- Irregular periods or new facial hair deserve a doctor's visit first.
- What a calendar can't show
- How severe your acne is, and whether hormones really are your top cause. On acne.today, a face scan and a short quiz grade it on the dermatologist 0 to 4 scale and name your likely top cause, with a morning and evening routine.
- Androgens
- Menstrual Cycles
- Polycystic Ovary Syndrome (PCOS)
- Birth Control Changes
Last reviewed
What causes hormonal acne, ranked by evidence
Hormonal acne is acne driven mainly by shifts in hormones. It means your oil glands get a stronger signal to make sebum. The triggers of hormonal acne are not equally well proven, so each one below carries a rating.
| Cause | What it does | Evidence | Source |
|---|---|---|---|
| Androgens | Make oil glands larger, so they make more sebum | Well established | NIAMS, AAD |
| Menstrual Cycles | Hormone levels shift around each period | Well established | AAD |
| Puberty | Androgens rise in boys and girls | Well established | NIAMS |
| Pregnancy and menopause | Hormone levels fluctuate and can bring on acne | Well established | AAD, NIAMS |
| Birth Control Changes | Starting or stopping the pill shifts hormone levels | Likely | AAD, MedlinePlus |
| Polycystic Ovary Syndrome (PCOS) | Androgen excess in 60 to 80% of girls and women who have it | Well established | Endocrine Society |
| Stress | Can't start acne, but can worsen it by raising androgens | Likely | AAD |
| Insulin Spikes | A direct link through diet is not shown; insulin matters in PCOS | Unproven | MedlinePlus, AAD, Endocrine Society |
| Genetics | Acne in a parent or close relative raises your risk | Likely | AAD, NIAMS |
What hormonal acne is
Hormonal acne is not a separate disease. It means hormones are one of the drivers behind the same plugged, swollen pores that make every pimple (NIAMS). The pattern of hormonal acne is breakouts on the lower face and jawline that flare with the menstrual cycle (Current Opinion in Pediatrics, 2026). Knowing the cause is half of it; the other half, in order, is how to treat hormonal acne.
Primary Hormonal Triggers: what causes hormonal acne most often
Most of what causes hormonal acne comes back to androgens and to the life events that move them.
Androgens
Androgens are hormones, such as testosterone, that both men and women make. They cause the oil glands to enlarge and make more sebum (NIAMS). Every other trigger on this page works by moving them up or down.
Menstrual Cycles
Hormone levels rise and fall around each period, so breakouts can arrive at the same point every month (AAD). They tend to sit on the lower face and jaw.
Puberty, Pregnancy, and Menopause
Androgens rise in boys and girls at puberty, which is why acne is most common in teens (NIAMS). Hormone changes in pregnancy can also cause acne (NIAMS). Acne that starts for the first time in adulthood is most common in women going through menopause (AAD).
Birth Control Changes
Starting or stopping birth control pills changes hormone levels and can set off breakouts (AAD). The pill can also help: combined pills can reduce acne, which is why doctors use them as a treatment (ACOG).
Underlying Conditions: Polycystic Ovary Syndrome (PCOS)
PCOS is a hormone disorder that affects 7 to 10% of women of childbearing age. Androgen excess, seen in 60 to 80% of girls and women with it, is a key problem, and acne is one of its signs (Endocrine Society). Watch for acne together with irregular periods, extra facial hair or thinning scalp hair.
Contributing Lifestyle & Internal Factors
Stress
Stress cannot cause acne on its own, but it can make the acne you have worse (AAD). Under stress the body makes more androgens, which stir up the oil glands (AAD).
Insulin Spikes
This one is unproven as a direct cause. Diets high in refined sugar or dairy may be related to acne in some people, but the link is controversial (MedlinePlus), and studies of low-glycemic diets point both ways (AAD). Insulin matters more in PCOS, where insulin resistance can make androgen excess worse (Endocrine Society). Pills and powders sold for hormone balance promise more than the evidence shows; see what is actually known about supplements for hormonal acne.
Genetics
If a parent or another close blood relative had acne, your own risk is higher (AAD, NIAMS). You can't change this one, but it explains why two people with the same habits break out differently.
Causes that only look hormonal
Plenty of acne low on the face looks hormonal and isn't. Rule these out before you blame your hormones.
- Medicines
- Medicines that contain hormones, corticosteroids and lithium can cause acne (NIAMS). Testosterone, phenytoin and some medicine-containing IUDs are on the list too (MedlinePlus). Never stop a prescribed medicine without asking the doctor who prescribed it.
- Products
- Greasy or oily skin and hair products can trigger breakouts (MedlinePlus).
- Friction
- Touching, resting on or rubbing the skin can set off acne (MedlinePlus).
Collars, chin straps and hair products can make breakouts low on the face look hormonal; the guide to acne on neck helps tell them apart.
When to get checked
See a doctor if your acne comes with irregular or missing periods, new hair on the face or body, or thinning scalp hair. These can be signs of PCOS (Endocrine Society, ACOG). Severe acne, or acne after your teens that doesn't respond to usual treatments, is another reason to go (ACOG). For women whose acne sits on the lower face and jawline, a dermatologist can prescribe hormonal therapy such as the pill or spironolactone (AAD).
Reader questions
At what age does hormonal acne peak?
Acne is most common in teens and young adults, and in the teen years it shows up more in boys. When it carries on into adulthood, it's more common in women (NIAMS).
Does hormonal acne go away?
For most people it fades by their thirties, but some still have it in their forties and fifties (NIAMS).
What are the signs of a hormone imbalance behind acne?
Irregular periods, extra hair on the face or body, thinning scalp hair, and acne that won't respond to the usual treatment (Endocrine Society, ACOG). Any of those is worth a doctor's visit.
How do I balance my hormones to get rid of acne?
No wash or food does that. For women, a dermatologist can prescribe the pill or spironolactone, which work on hormones (AAD).
Can men get hormonal acne?
Yes. Androgens drive acne in everyone, and teen acne is more common in boys than in girls (NIAMS).
Sources
- Polycystic Ovary Syndrome (PCOS), Endocrine Society
- Adult acne, American Academy of Dermatology (AAD)
- What causes acne, AAD
- Hormonal therapy for acne, AAD
- Acne: Diet, AAD
- Acne, NIAMS (National Institutes of Health)
- Acne, MedlinePlus (National Library of Medicine)
- Polycystic Ovary Syndrome (PCOS), ACOG
- Hormonal acne therapies in pediatrics, Current Opinion in Pediatrics, 2026, PMID 42312792
Last reviewed . This page is general information, not a diagnosis. See a doctor if your acne comes with irregular periods, new facial hair, or deep, painful lumps.
Still not sure what causes hormonal acne in your case? A face scan and a short quiz on acne.today grade your acne on the dermatologist 0 to 4 scale and name your likely top cause.
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