Does Dandruff Cause Hair Loss? Here's What You Need to Know

Medically reviewedby Edna Skopljak M.D.
WrittenbyLiza Schermann
Last updated

Have you ever wondered if your dandruff is the reason you're losing hair? While dandruff itself doesn’t directly cause hair loss, excessive scratching from an itchy scalp can damage your hair follicles, leading to thinning or weak hair.

Dandruff is a common scalp condition that causes flakes, but when it’s paired with constant irritation, the real problem begins. 

Scratching too hard or too often can create tiny wounds, inflammation, and even scarring, making it difficult for hair to grow back normally. 

So, while dandruff isn't the direct culprit, the effects of untreated dandruff can certainly play a role in hair loss over time.

Can dandruff cause hair loss?

Dandruff itself doesn't cause hair loss. However, aggressive scratching due to itching can damage the scalp, leading to weakened hair and, in some cases, hair thinning.

When dandruff becomes severe, it’s natural to scratch your scalp for relief. But too much scratching can irritate your hair follicles, causing inflammation that may eventually lead to scarring. 

This scarring can slow hair growth, making your hair appear thinner or more fragile. Taking care of your scalp and treating dandruff early can help prevent this cycle from starting.

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What can cause both dandruff and hair loss?

does dandruff cause hair loss

Several scalp conditions can trigger both dandruff and hair loss. These conditions not only cause flakiness but also damage the scalp, which can lead to hair loss if left untreated:

  • Fungal infections (like tinea capitis): These cause intense itching, flaking, and in some cases, hair to fall out in clumps.
  • Scalp psoriasis: This autoimmune condition leads to scaly patches that itch and can cause hair to fall out in the affected areas.
  • Seborrheic dermatitis: A common cause of greasy flakes and redness, this can worsen and damage hair follicles if not treated.
  • Folliculitis decalvans: A rare inflammatory condition that destroys hair follicles and can easily be mistaken for dandruff due to itching.
  • Lichen planopilaris: Another inflammatory condition that causes flakiness, often leading to patches of hair loss.

Some people may experience dandruff and hair loss simultaneously due to unrelated conditions such as male pattern baldness or telogen effluvium, which can coincide with scalp irritation. Always consider both factors when looking for a solution.

How to prevent hair loss from dandruff

does dandruff cause hair loss

Dealing with dandruff and worried about hair loss? The good news is, it’s manageable. Here are some steps you can take to keep both issues under control:

Get a diagnosis

If your dandruff seems persistent or you're unsure what's causing it, your first step should be getting a proper diagnosis. Dandruff can be triggered by a variety of factors, such as:

  • Dry skin: This leads to small, non-inflammatory flakes.
  • Seborrheic dermatitis: A condition that causes red, scaly patches and can create white or yellow flakes.
  • Contact dermatitis: Sensitivity to hair products or dyes, leading to red, irritated skin.

A dermatologist can help pinpoint the underlying cause of your dandruff, which is crucial for finding the most effective treatment. Once you know what’s triggering it, you can choose a targeted solution that not only reduces dandruff but also protects your hair from unnecessary damage.

Use medicated shampoo

Choosing the right shampoo can make all the difference in keeping dandruff at bay. Medicated shampoos are designed to address dandruff directly, and here are a few ingredients to look for:

  • Zinc pyrithione: Helps control dandruff-causing fungus.
  • Ketoconazole: Fights fungal infections on the scalp.
  • Salicylic acid: Exfoliates dead skin cells, preventing buildup.

These shampoos are usually only needed for a short time or until your dandruff is under control. It’s important to follow the instructions and adjust based on the severity of your dandruff.

Add moisture

Medicated shampoos can sometimes be drying, which is why adding moisture to your scalp is essential. A good conditioner, especially one formulated for dry scalps, can help prevent itchiness and dryness. You can also try scalp-friendly oils like coconut oil, which has moisturizing and antifungal properties.

However, if you have seborrheic dermatitis, avoid using too much oil as it could make the condition worse.

Avoid irritating hair products

Your hair care routine might be doing more harm than good. Hair products containing harsh chemicals like formaldehyde or heavy fragrances can irritate the scalp, leading to more dandruff and even hair loss.

Check the labels on your products, and avoid those that contain:

  • Strong fragrances (both natural and synthetic)
  • Bleach
  • Harsh detergents
  • Preservatives like formaldehyde

Switching to hypoallergenic or gentle hair products can make a huge difference in reducing irritation and maintaining scalp health.

Manage stress

While stress doesn’t cause dandruff, it can certainly make things worse. When you’re stressed, your immune system weakens, and this can make your scalp more sensitive to the naturally occurring fungi that lead to dandruff.

Simple stress-management techniques can help:

  • Yoga or meditation for mental relaxation.
  • Taking short walks to clear your mind.
  • Practicing deep breathing for just a few minutes a day.

A little less stress can go a long way toward maintaining both scalp and hair health.

Get some sun

Sunlight might help reduce dandruff symptoms, but remember that too much exposure can lead to skin damage. If you plan on spending time outdoors, try to get a little sun exposure on your scalp, but make sure to protect the rest of your skin with sunscreen to prevent UV damage.

Will hair loss from dandruff grow back?

Yes, hair loss caused by dandruff or seborrheic dermatitis typically grows back once the underlying issue is addressed.

When your scalp heals and dandruff is under control, hair follicles often recover, allowing hair to grow back naturally. However, if the symptoms persist or worsen, it’s best to consult a healthcare professional for guidance on the most effective treatment.

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Conclusion

Dandruff doesn’t have to spell disaster for your hair. By getting the right diagnosis, using targeted treatments, and maintaining a healthy scalp routine, you can keep hair loss at bay and restore the health of your locks. 

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FAQs

Does going bald remove dandruff?

Shaving your head can help reduce visible dandruff as dead skin sheds more easily, but a shaved scalp can still develop dandruff. It's important to care for your scalp even if you're bald.

Will washing hair remove dandruff?

Yes, regular hair washing can help control mild dandruff. If regular washing isn’t enough, use a dandruff shampoo with active ingredients like zinc pyrithione or ketoconazole.

Is dandruff permanent?

Dandruff cannot be permanently cured but can be effectively managed with proper treatment, including medicated shampoos and healthy hair care habits.

Does haircut reduce dandruff?

A haircut won’t reduce dandruff, as dandruff forms on the scalp, not the hair. However, bald areas may experience less dandruff because the environment is less ideal for dandruff-causing microbes.

Can hot water cure dandruff?

Hot water strips natural moisture from the scalp, worsening dandruff. It's better to use warm water, around 40°C (100°F), to avoid drying out your scalp.

Is cold water good for dandruff?

Yes, cold water can help by closing the pores and follicles, making it harder for dirt or harmful substances to cause dandruff.

Can lemon remove dandruff?

Lemon can help eliminate dandruff due to its acidic nature. For better results, combine it with honey to moisturize and soothe the scalp.

References:

  1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6369642/
  2. https://pubmed.ncbi.nlm.nih.gov/18498517/
  3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2887514/
  4. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4852869/