Hair Loss During Pregnancy: Is It Normal, & What to Expect

Pregnancy brings about a wide range of physical changes, and while many are expected, like morning sickness or fatigue, others can catch you off guard. One surprising symptom some expectant mothers experience is hair loss or noticeable hair thinning.

Although pregnancy is often associated with thicker, more vibrant hair thanks to hormonal shifts, not everyone gets that so-called “pregnancy glow.” For some, shedding hair during pregnancy is a very real — and understandably concerning — experience.

The good news? In most cases, pregnancy-related hair loss is temporary and completely normal [*]. In this article, we’ll break down why it happens, when it typically shows up, and what you can do to support your hair and overall health throughout this transformative time.

Can Pregnancy Actually Cause Hair Loss?

Yes, pregnancy can cause hair loss — and it often surprises people when it happens.

We often hear about postpartum hair loss (more on that later), but some women begin noticing thinning or shedding while still pregnant, especially in the first trimester [*]. That’s when your body is undergoing a dramatic hormonal shift, and your hair follicles are not immune to the change [*].

One common cause is a condition called telogen effluvium, which occurs when a larger-than-normal number of hair follicles prematurely enter the “resting” phase of the hair cycle and fall out a few weeks to months later [*]. Telogen effluvium is often triggered by physical or emotional stress, both of which are common during pregnancy.

How Pregnancy Affects the Hair Growth Cycle

To understand why this happens, it helps to know how hair normally grows. Hair goes through a cycle consisting of [*]:

• Anagen (growth phase): lasts 2–6 years
• Catagen (transition phase): a short period where growth slows
• Telogen (resting phase): lasts 2–3 months
• Exogen (shedding phase): when the hair falls out

During pregnancy, elevated estrogen levels typically extend the anagen phase, which is why some women report thicker hair. However, when estrogen fluctuates early in pregnancy or drops postpartum, hair may shift into the telogen phase more rapidly, leading to noticeable shedding [*].

Is Hair Loss During Pregnancy Normal?

Yes, it can be. Research shows that up to 50% of women experience noticeable hair thinning or increased shedding during or after pregnancy, often due to hormonal changes and shifts in the hair growth cycle [*].

Still, the experience varies widely. Some women see fuller, thicker hair, while others experience hair that feels finer, thinner, or sheds more than usual. The difference often depends on your unique hormone balance, overall health, stress levels, and nutritional status [*].

If your hair loss is severe, appears suddenly, or is accompanied by fatigue, dizziness, or weight changes, be sure to consult your healthcare provider as it could be a sign of an underlying condition [*].

What Causes Hair Loss During Pregnancy?

Hair loss in pregnancy usually isn’t caused by just one thing. Here are the most common contributors:

1. Hormonal Fluctuations

Estrogen plays a big role in hair growth. During pregnancy, estrogen levels rise, often keeping hair in its growth phase longer. But if estrogen dips due to stress or other changes (especially in the first trimester), it can cause a shift into the shedding phase. Everyone responds to these hormonal shifts a little differently [*].

2. Stress (Physical and Emotional)

Let’s face it, pregnancy can be physically and emotionally demanding. Whether it's from morning sickness, poor sleep, major life changes, or general anxiety, stress triggers a biological reaction in the body that can disrupt the hair growth cycle. In fact, studies show that high cortisol levels (a stress hormone) can impair hair follicle activity [*].

3. Nutritional Deficiencies

Your baby is relying on you for essential nutrients, and if your intake isn’t meeting both your needs, your hair might suffer. Common deficiencies linked to hair loss include:

• Iron: Iron-deficiency anemia affects up to 20% of pregnant women and is a major cause of hair shedding [*].
• Vitamin D: Important for follicle cycling and immune health [*].
• B vitamins: Especially biotin, B12, and folate [*].
• Zinc: Helps with tissue growth and repair, including hair [*].

Your doctor can test for these deficiencies and guide you on safe supplementation if needed.

4. Thyroid Imbalances

Pregnancy can influence thyroid function, leading to hypothyroidism (underactive thyroid) or hyperthyroidism (overactive thyroid). Both can cause hair thinning, along with fatigue, mood changes, dry skin, and temperature sensitivity. Thyroid disorders are common in pregnancy and easily detectable with blood tests [*].

5. Genetics

If your mother or siblings experienced hair loss during pregnancy or postpartum, you may be more likely to go through it too. Genetic predisposition affects how your body responds to hormonal and environmental changes [*].

What Does Pregnancy Hair Loss Look Like?

Not all hair loss looks the same. Here’s what’s typical, and what’s not:

• Diffuse Shedding: Most pregnancy-related hair loss is evenly spread across the scalp rather than showing up in patches [*].
• No Bald Spots: If you’re seeing distinct bald patches or losing hair in clumps, that may signal alopecia areata or another condition worth checking out [*].
• Changes in Texture: Some women notice their hair feels flatter, thinner, or grows slower than usual, even if they’re not shedding a lot [*].

A healthy person loses about 50 to 100 hairs a day. With telogen effluvium, it may jump to 300 hairs per day. While this can be alarming, it typically resolves on its own over time [*].

When Does the Hair Loss Stop?

Hair loss during pregnancy usually slows down by the second or third trimester as your hormone levels stabilize. However, the most noticeable shedding actually happens after delivery.

Around 2–4 months postpartum, estrogen drops significantly, and many women experience a sudden spike in hair loss [*]. This is still telogen effluvium, it’s just delayed. The good news? It’s temporary.

Hair growth generally returns to normal within 6 to 12 months postpartum, although for some, it may take a bit longer [*].

What Can You Do to Treat Hair Loss During Pregnancy?

While you can’t completely prevent hormone-related hair loss, you can support healthy growth and minimize further damage.

1. Eat for Your Hair

Aim for a diet rich in protein, iron, and healthy fats. Great options include [*]:

• Eggs (biotin + protein)
• Lentils and leafy greens (iron)
• Avocados and nuts (healthy fats + vitamin E)
• Sweet potatoes and bell peppers (vitamins A and C)

If nausea makes eating tough, try smaller, more frequent meals, and speak with a registered dietitian for tailored support.

2. Talk to Your Doctor About Supplements

If your prenatal vitamin isn’t covering all your needs, your provider might recommend iron, vitamin D, or B-complex supplements [*]. Avoid self-supplementing, especially during pregnancy as too much of certain nutrients can be harmful [*].

3. Treat Your Hair Gently

Think of your hair as delicate fabric. Avoid [*]:

• Tight hairstyles (ponytails, buns)
• Heat tools (blow dryers, curling irons)
• Brushing when wet
• Chemical treatments (dyes, relaxers)

Opt for sulfate-free shampoos, microfiber towels, and wide-tooth combs to reduce breakage.

4. Try Scalp Massage

Gentle scalp massage a few times a week can stimulate circulation to the hair follicles and promote relaxation. Use light pressure and circular motions [*].

5. Manage Stress

Stress management benefits your entire body, including your hair. Try [*]:

• Prenatal yoga or stretching
• Deep breathing or meditation apps
• Walks outside
• Journaling or connecting with friends

Can You Prevent Hair Loss During Pregnancy?

You can’t always stop it, but you can take proactive steps to support hair health [*]:

• Stay hydrated (your hair is nearly 25% water)
• Prioritize sleep and rest
• Keep up with your prenatal checkups
• Maintain a balanced diet with key nutrients
• Avoid unnecessary hair treatments

Taking care of yourself during pregnancy is the best foundation for hair (and overall) wellness.

Is Hair Loss a Sign of Pregnancy?

Not usually. Hair loss isn’t one of the typical early signs of pregnancy. However, some women report noticing increased shedding early on due to the sudden shift in hormone levels.

If you’re noticing hair loss and suspect pregnancy, take a test and follow up with your doctor — don’t rely on hair changes alone.

Does Losing Hair During Pregnancy Mean You’re Having a Boy or Girl?

There’s a popular myth that if you’re losing hair (or feel less “glowy”), it means you’re having a girl who’s “stealing your beauty.” While it's a fun theory, there’s no scientific evidence that hair changes are linked to your baby’s sex.

Hair loss during pregnancy is purely biological, not based on whether you’re having a boy or a girl [*].

Pregnancy and Hair Loss FAQ

Can pregnancy cause your hair to thin?

Yes — especially in early pregnancy or if you’re experiencing stress, hormone fluctuations, or nutritional deficiencies.

Why am I losing so much hair while pregnant?

It could be telogen effluvium triggered by hormonal shifts, iron deficiency, or thyroid imbalance.

How long does pregnancy hair loss last?

Hair shedding often resolves by 6–12 months postpartum. In pregnancy, it may improve in the second trimester.

Do prenatals help with hair loss?

They help prevent deficiencies that contribute to hair loss but aren’t a guaranteed solution for all cases.

Can I use hair growth products while pregnant?

Many topical treatments, like minoxidil, aren’t tested for safety in pregnancy. Always consult your OB/GYN before using any growth aids.

Are there safe shampoos or products to use?

Yes — look for sulfate-free, gentle formulas. Biotin, caffeine, and saw palmetto are often used in pregnancy-safe hair products.

What vitamins are linked to hair thinning in pregnancy?

Iron, B12, folate, vitamin D, biotin, and zinc all play key roles in healthy hair growth.

Will my hair go back to normal?

In most cases, yes. Hair growth typically returns to pre-pregnancy levels within 6–12 months after birth.

The Bottom Line

Hair loss during pregnancy is more common than you might expect — and for most, it’s nothing to worry about. Whether it shows up early on or after birth, it’s typically your body’s natural response to major hormonal and physiological changes.

Focus on nourishing your body, minimizing stress, and practicing gentle hair care. And if something feels off or concerning, never hesitate to check in with your doctor. You’re growing a baby — your body is doing something incredible. Give yourself (and your hair) some grace.

About MiracleCord

At MiracleCord, we support you at every stage of the parenting journey, from pregnancy to birth and beyond. As a trusted leader in umbilical cord blood and tissue banking, we help families secure their children’s future health with the power of stem cells. These cells have the potential to treat over 80 serious conditions, and preserving them today could provide peace of mind for tomorrow.

To learn more about how MiracleCord can support your family’s future, call us today at 888.743.2673.

DISCLAIMER: THE INFORMATION ON THIS WEBSITE IS NOT INTENDED TO BE USED AS MEDICAL ADVICE.The materials and information contained on the MiracleCord website is provided for educational and informational purposes only, and is not intended to, and does not constitute, medical or other health advice or diagnosis, and should not be used as such. You should not use this information to diagnose or treat a health problem or disease. If you are seeking personal medical advice, you should consult with a licensed physician. Always consult with a qualified health care provider regarding a medical condition.