If you have noticed hair appearing somewhere unexpected — your chin, your stomach, maybe even your lower back — you are not imagining things, and you are definitely not alone. Unwanted hair growth is one of the most common, least talked-about side effects of pregnancy. Here is what is actually going on, which areas tend to be affected most, and how to manage it without irritating skin that is already working overtime.
Why Pregnancy Triggers Extra Hair Growth
Hair growth is governed by hormones, and pregnancy reshapes your hormonal landscape dramatically. Two mechanisms are at work simultaneously.
Elevated oestrogen prolongs the growth phase. Under normal circumstances, each hair follicle cycles through growth (anagen), transition (catagen), and rest (telogen) phases, then sheds. Rising oestrogen during pregnancy extends the anagen phase, so hairs that would normally fall out stay put. This is why scalp hair often looks thicker and fuller mid-pregnancy — but the same effect applies across the whole body.
Androgens (male hormones) rise too. Research published in Fertility and Sterility (Hatch et al., 2016) tracked androgen levels across pregnancy and found that serum testosterone and androgen scores increased progressively as pregnancy advanced. Androgens drive the growth of terminal hair — the darker, coarser kind — particularly on androgen-sensitive areas like the face, chest, and abdomen.
The result is a double effect: existing hairs stay in cycle longer, and new terminal hairs may emerge in places you have never had them before. The NHS notes that hirsutism — thick, dark hair on the face, neck, chest, tummy, lower back, buttocks, or thighs — can have a hormonal cause, and pregnancy is a well-recognised hormonal trigger.
Which Areas Are Most Commonly Affected
Unwanted hair during pregnancy tends to cluster around androgen-sensitive follicles. The areas women most commonly report include:
- Upper lip and chin — the most frequently noticed, because facial hair is hard to ignore
- Abdomen — the "linea nigra" region down the centre of the belly is a classic site
- Chest and nipple area
- Lower back and buttocks
- Arms and legs — existing hair may feel coarser or grow back faster after removal
Some of these changes are subtle; others feel more obvious. Either way, they are a normal physiological response, not a sign that something is wrong.
Is It Permanent?
Almost always, no. Because the extra hair growth is driven by pregnancy hormones, it resolves once those hormone levels normalise after delivery. Most women find that the hair that grew during pregnancy sheds naturally within three to six months after giving birth, according to the American College of Obstetricians and Gynecologists (ACOG). If significant unwanted hair persists beyond six months postpartum, it is worth raising with your GP or dermatologist to rule out other hormonal factors.
Safe Grooming During Pregnancy
Pregnancy skin is more reactive than usual. Around 90% of women experience some form of skin change during pregnancy — increased sensitivity, heightened reactivity to products, and a greater tendency toward irritation and ingrown hairs are all common. That means the grooming routine that worked fine pre-pregnancy may need a rethink.
Shaving: The Gentlest Option
Shaving is widely considered the safest hair removal method during pregnancy. It introduces no chemicals, requires no heat, and — when done well — keeps skin calm even when it is at its most reactive.
What makes the difference is the tool. A dull, multi-blade cartridge drags over the skin repeatedly, increasing friction and the risk of irritation. A quality safety razor with a single sharp blade removes hair cleanly in fewer passes, which is exactly what sensitive pregnancy skin needs. See the Freya starter kit if you want a safety razor set up properly for sensitive skin from the first shave.
Practical tips for shaving during pregnancy:
- Shave at the end of a warm shower. A few minutes of warmth softens the hair and opens follicles, reducing the effort required.
- Use a shave gel or cream formulated for sensitive skin. Let it sit on the skin for a minute or two before the blade touches you.
- Go with the grain, especially on new-growth areas. Against-the-grain technique lifts the hair above the skin surface for a closer shave but increases the chance of ingrown hairs — a bigger problem when hormones are already inflaming follicles.
- Rinse with cool water and pat dry. Hot water after shaving can heighten post-shave redness on reactive skin.
- Follow with a fragrance-free moisturiser. Pregnancy skin loses moisture faster; locking it in after shaving helps prevent that tight, itchy feeling.
- Sit down if you are shaving legs or the bikini area. Balance shifts as your bump grows, and a seated position gives you stability and better visibility.
- Use a small mirror for hard-to-see areas. Your bump will make it harder to see your abdomen; a handheld mirror reduces guesswork and accidental nicks.
What About Other Methods?
- Waxing is generally considered safe in pregnancy but skin sensitivity can make it more painful than usual, and reactions are more likely. If you wax, patch-test first.
- Depilatory creams contain chemicals (usually thioglycolate compounds) that dissolve the hair shaft. Most manufacturers recommend avoiding them during pregnancy; always check with your midwife or GP before use.
- Laser hair removal and electrolysis are typically deferred until after pregnancy and breastfeeding, as there is insufficient safety data for use during pregnancy.
- Bleaching creams are generally not recommended during pregnancy.
For a full breakdown of technique by body area — including abdomen, bikini line, underarms, and face — the body area shaving guide covers each zone in practical detail.
A Word on Skincare Around Hair Removal
Pregnancy can also trigger hyperpigmentation (darkening of the skin) in areas like the upper lip, inner thighs, and abdomen — the same zones where unwanted hair tends to appear. If you are dealing with both, opt for unscented, minimal-ingredient products post-shave to avoid compounding any irritation. A plain, fragrance-free moisturiser applied to still-damp skin is almost always the right call.
The Bigger Picture
Noticing hair in new places during pregnancy can feel disconcerting, but it is one of the most normal things your body can do right now. Your hormones are running a remarkable construction project, and a bit of extra hair is one of the least consequential side effects. Manage it in whatever way feels right for you — or not at all. Most of it will go on its own once your body finds its post-pregnancy equilibrium.
If you want a reliable, gentle tool for the months ahead, a quality safety razor is the upgrade that pays off well beyond pregnancy — kinder to skin, better for the environment, and genuinely more effective once you have the technique down.
This article is for general information only and does not constitute medical advice. If you have concerns about hormonal changes during pregnancy, speak with your midwife or GP.
Frequently Asked Questions
Why am I growing hair in new places during pregnancy?
Rising oestrogen prolongs the hair growth phase so existing hairs shed less, while increasing androgen levels can stimulate new terminal (darker, coarser) hair growth on androgen-sensitive areas such as the face, belly, chest, and back. Both effects are driven by normal pregnancy hormonal changes.
Will the unwanted hair go away after I give birth?
For most women, yes. Because the extra growth is hormone-driven, it typically sheds naturally within three to six months after delivery as hormone levels return to pre-pregnancy ranges. Persistent hair growth beyond six months postpartum is worth discussing with a GP.
Is shaving safe during pregnancy?
Yes. Shaving is widely considered one of the safest hair removal options during pregnancy because it uses no chemicals or heat. The key is using a sharp blade and a gentle shave gel to minimise friction on pregnancy-sensitive skin.
Which hair removal methods should I avoid when pregnant?
Most dermatologists advise caution with depilatory creams (chemical dissolvers) and recommend deferring laser hair removal and electrolysis until after pregnancy and breastfeeding due to limited safety data. Always check with your midwife or GP before trying a new removal method.
Why does my skin react more to shaving now that I am pregnant?
Around 90% of women experience increased skin sensitivity during pregnancy due to hormonal and immune changes. This makes skin more prone to razor burn, redness, and ingrown hairs. Switching to a sharp single-blade razor, using a sensitive-skin shave gel, and moisturising after shaving significantly reduces these reactions.
Last updated: 2026-06-17