Hormonal Acne in Women and PCOS: Signs, Causes and Treatment

Hormonal acne in women usually shows up as deep, tender pimples on the lower face, jawline, chin and neck, often flaring in the week before a period. It is caused by the skin’s sensitivity to androgen hormones, and in some women it is one of the first visible signs of polycystic ovary syndrome (PCOS), which is why adult acne that does not settle deserves a closer look.

Acne is not just a teenage problem. Many women in India first develop acne, or see it return, in their twenties, thirties and even forties. This guide explains how to recognise hormonal acne, how it connects to PCOS, and what your treatment options are.

What does hormonal acne look like?

Hormonal acne has a fairly typical pattern:

• Location: jawline, chin, around the mouth and the side of the neck, rather than the forehead.
• Type: red, tender bumps and deeper painful nodules that sit under the skin and take a long time to settle.
• Timing: flares in the days before a period, or with stress and poor sleep.
• Persistence: keeps coming back in the same areas despite good skincare.

On brown skin, these deep lesions frequently leave dark marks, and picking at them can cause scars. Our guide on dark spots after acne explains how to manage these marks.

Why do hormones cause acne?

All women make small amounts of androgens such as testosterone. Androgens enlarge oil glands and increase sebum, which feeds the acne process described in our main acne causes and treatment guide.

Two things can push this balance toward acne:

1. Higher androgen levels, as seen in PCOS.
2. Normal hormone levels but more sensitive oil glands. This is actually the most common situation in adult women with acne. Blood tests are normal, but the skin overreacts.

Other triggers include stopping or switching hormonal contraception, pregnancy and the postpartum period, perimenopause, and some medicines.

What is PCOS and how is it linked to acne?

Polycystic ovary syndrome is a common hormonal condition. The World Health Organization notes that it affects a significant proportion of women of reproductive age, and many are undiagnosed. Some health services, including the NHS, now describe it as polyendocrine metabolic ovarian syndrome (PMOS), to reflect that it affects metabolism and hormones throughout the body, not just the ovaries.

PCOS can show up on the skin before it is diagnosed. Common skin and hair signs include:

Sign	What it looks like
Acne	Persistent lower face acne, often resistant to usual treatments
Hirsutism	Coarse dark hair on the upper lip, chin, chest or abdomen
Scalp hair thinning	Widening of the parting or thinning at the crown
Acanthosis nigricans	Dark, velvety skin on the neck, underarms or groin
Oily skin	Shiny face and scalp through the day

Non skin signs include irregular or missed periods, difficulty getting pregnant, weight gain, and insulin resistance. If you notice dark velvety patches on your neck, read our article on dark underarms and acanthosis nigricans, which is closely linked to insulin resistance.

How is hormonal acne diagnosed?

There is no single test. Your doctor will look at the pattern of your acne and ask about:

• Your menstrual cycle and any irregularity.
• Excess hair growth or hair thinning.
• Weight changes, family history of diabetes or PCOS.
• Medicines, supplements and any creams you use, including steroid creams.
• Gym supplements or whey products, which some people notice worsen acne.

If PCOS is suspected, your doctor may suggest blood tests for hormones, blood sugar and lipids, and sometimes a pelvic ultrasound. A gynaecologist or endocrinologist may be involved alongside your dermatologist.

What treatments are available for hormonal acne?

Treatment usually combines skincare with medical options, chosen around your age, health, and plans for pregnancy.

Topical treatments

These are the foundation for nearly everyone:

• Retinoids (such as adapalene, or stronger prescription versions) to keep pores clear.
• Benzoyl peroxide to reduce acne bacteria.
• Azelaic acid, which is gentle, calms inflammation and helps fade dark marks.
• Topical antiandrogen creams, which your dermatologist may consider in some cases.

Hormonal treatments your doctor may consider

• Combined oral contraceptive pills. Certain types reduce androgen activity and oil production. They are not suitable for everyone, for example women with a history of blood clots, migraine with aura, or some other conditions.
• Spironolactone. A medicine that blocks androgen effects on the skin, widely used for adult female acne in many countries. It requires medical supervision and is not used in pregnancy.
• Treating PCOS itself. Where insulin resistance is present, your doctor may discuss lifestyle measures and, in some cases, medicines that improve insulin sensitivity.

Other options

• Oral antibiotics may be used for a limited period during a flare.
• Isotretinoin may be considered for severe or scarring acne. It requires strict pregnancy prevention and regular monitoring.
• Chemical peels can help with acne and marks. See our chemical peels guide for Indian skin.

Hormonal treatments usually take at least three months to show their full effect. Please do not start, stop or switch any hormonal medicine on your own.

What can I do at home to help?

Lifestyle changes will not replace treatment, but they support it:

• Keep a simple routine. Gentle cleanser, non comedogenic moisturiser, sunscreen every morning, and your prescribed treatment at night.
• Do not pick. Deep jawline bumps are tempting to squeeze but often scar.
• Track your cycle. Noting when flares happen helps your doctor understand the pattern.
• Move regularly and sleep well. Exercise improves insulin sensitivity, which matters in PCOS.
• Reduce high sugar foods. Some evidence links high glycaemic diets with worse acne.
• Be cautious with supplements. Unregulated hormone or herbal products, and some protein powders, can make acne worse.
• Avoid steroid creams. They may calm a pimple briefly but can cause steroid acne and rebound flares.

Is hormonal acne permanent?

Hormonal acne often improves over time, especially once the trigger is managed, but it can be long lasting and may recur after stopping treatment. The aim is control: fewer flares, no new scars, and fading of existing marks. With the right plan, most women see meaningful improvement, although results vary from person to person.

Can hormonal acne affect my mood and confidence?

Yes, and this deserves to be taken seriously. Adult acne can affect self esteem, work and relationships, and many women feel they should have outgrown it. If acne is making you anxious or low, mention it to your doctor. Effective treatment often improves how people feel as well as how their skin looks.

When to see a dermatologist

Please consult a dermatologist if:

• You have acne along your jaw and chin that has lasted more than a few months.
• Your acne comes with irregular periods, excess facial hair or scalp hair thinning.
• You notice dark velvety patches on your neck or underarms.
• Acne leaves dark marks or scars.
• Over the counter products have not helped after 2 to 3 months.
• You are planning a pregnancy and want acne treatment that is safe for that stage.

Adult acne can feel frustrating and isolating, but you do not have to manage it alone. If you would like a personalised plan, you can book an online consultation with Dr. Maria Ansari.