Shedding vs Breakage: The 30-Second Check

There’s a question I ask almost every new client who comes to me worried about hair loss: “Is it shedding, or is it breakage?” Most people haven’t considered that there’s a difference. Understanding shedding vs breakage is one of the most important things you can do before taking any action. But there is — a big one — and knowing which you’re dealing with changes everything about what to do next.

The good news? You can usually tell in about thirty seconds.

 

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Why shedding vs breakage matters

Shedding and breakage can look alarmingly similar — hair on your pillow, hair in the shower, hair wrapped around your brush. But they come from completely different causes, they need completely different responses, and confusing the two can mean months of doing the wrong thing.

Shedding is a whole hair falling from the root. It’s part of your hair’s natural cycle — you shed 50 to 100 hairs a day without noticing. When shedding increases beyond that, it’s usually a signal that something internal has changed. Once you’ve confirmed shedding vs breakage using the check below, the next step is understanding why. Common triggers include a nutritional shift, a hormonal change, stress, rapid weight loss, or medication — something we cover in depth in our guide to GLP-1 hair shedding. This is what we call telogen effluvium, and it’s driven by what’s happening inside your body.

Breakage is hair snapping partway along the strand. The root is still in your scalp — the shaft has simply become too weak or damaged to hold together. This is almost always driven by what’s happening outside — heat styling, chemical processing, rough handling, dryness, or products that are stripping rather than supporting your hair.

The reason this distinction matters so much is simple: if you’re shedding and you treat it like breakage, you’ll spend time and money on hair masks and bond repair when what you actually need is the right blood tests for hair loss. And if you’re breaking and you treat it like shedding, you might spend months worrying about telogen effluvium when the answer is a change in how you’re handling your hair.

 

The 30-second shedding vs breakage check

Next time you find a hair that’s come away, pick it up and look at it. That’s genuinely all you need to do.

If it’s shedding, you’ll see a tiny white or translucent bulb at one end. That’s the root — or more precisely, the club end of a hair that’s completed its resting phase and released naturally from the follicle. The hair will usually be full-length, matching the rest of your hair.

If it’s breakage, there’s no bulb. Both ends will look the same — blunt or frayed, sometimes with a visible split. The hair will often be shorter than your normal length because it’s snapped somewhere along the strand.

That’s it. Bulb at the end means shedding. No bulb means breakage. Thirty seconds.

Now, it’s worth saying that many people have both happening at the same time, and that’s completely normal. A bit of daily shedding alongside some breakage from styling is expected. What you’re looking for is which one is dominant — which one is driving the volume of hair you’re losing.

 

What to do if it’s mostly shedding

Shedding is an inside job. It’s driven by what’s going on in your body, not what you’re putting on your hair. The most common triggers I see in clinic are:

Rapid weight change — including on GLP-1 medications like Ozempic, Wegovy, and Mounjaro. I’ve written in detail about why this happens and what helps.

Nutritional gaps — particularly low ferritin, vitamin D, zinc, and insufficient protein. These are often invisible until you check.

Hormonal shifts — postpartum, perimenopause, menopause, thyroid changes, or coming off hormonal contraception.

Stress — physical or emotional. Your body doesn’t distinguish between the two.

The practical steps: get your bloods checked (specifically ferritin, vitamin D, zinc, thyroid function), prioritise protein, and if the shedding has been going on for more than a few months or is getting worse rather than better, get a proper assessment. Shedding that’s identified and addressed early almost always resolves well. Shedding that’s left to run its course without understanding the cause can take much longer.

 

What to do if it’s mostly breakage

Breakage is an outside job — and that makes it both simpler to identify and often faster to fix.

The usual culprits:

Heat without protection. Straighteners, curling tongs, and hot blow-drying all weaken the hair shaft over time. If you use heat regularly, a quality heat protectant isn’t optional — it’s essential. And lower the temperature. Most hair doesn’t need the maximum setting.

Chemical overload. Colour, bleach, relaxers, perms — all of these alter the structure of the hair shaft. Spaced sensibly and done professionally, they’re manageable. Layered too frequently, they cause cumulative damage that leads to snapping.

Rough handling. Brushing aggressively through wet hair, tight ponytails and buns that create constant tension, elastic bands that grip and tear. Small changes here can make a surprisingly big difference.

Dryness. Hair that’s dry is brittle, and brittle hair breaks. This can be environmental (central heating, hard water), product-related (sulphates and alcohols that strip moisture), or simply a sign that your hair needs more hydration than it’s getting.

The practical steps: assess your heat and chemical habits honestly, switch to gentler products, use a good conditioner, and handle your hair — especially when wet — with genuine care. Breakage responds to changes in routine faster than most people expect. You can often see a noticeable improvement within a few weeks.

 

When it’s both — and when to look deeper

Sometimes shedding and breakage happen together, and that combination can feel overwhelming. The total volume of hair loss seems extreme, and it’s hard to know where to start.

This is particularly common during periods of rapid weight loss, hormonal change, or high stress — your body is shedding more and your hair may be drier and more fragile at the same time.

In these situations, I always start with the shedding — because that’s the internal factor, and it’s the one that won’t resolve on its own without understanding the cause. Breakage you can start improving today with better care. Shedding needs investigation.

And if you’re genuinely not sure which you’re dealing with, or if you’re doing the 30-second check and seeing plenty of both — that’s a good moment to get a professional opinion. A scalp and hair assessment can tell you exactly what’s happening, whether there’s an underlying factor that needs attention, and what the most effective path forward looks like for your hair specifically.

 

The quick version

Pick up a hair. Look at the end.

Bulb = shedding. Look inward — nutrition, hormones, stress. Get bloods checked. Seek assessment if it’s persistent.

No bulb = breakage. Look outward — heat, chemicals, handling, moisture. Adjust your routine. Results come quickly.

Both? Start with shedding (the internal cause), then improve your care routine for the breakage.

Not sure? That’s what we’re here for.

 

Want clarity on what’s going on with your hair?

A Private Note takes two minutes and gives me and my team enough to point you in the right direction. Whether it’s shedding, breakage, or a bit of both — we’ll help you figure out the most useful next step.

 

[Reserve you Hair Health Plan →]

 

This is part of our Hair Health series. If you’re experiencing shedding after starting a GLP-1 medication, our guide to Ozempic, Wegovy & Mounjaro hair shedding covers why it happens and what helps.

 

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Hair Health Essentials combines genetic testing, blood biomarker analysis, and personalised treatment protocols with naturally formulated, COSMOS-certified products — because your hair deserves both the science and the care. Clinics at Harley Street London, Blackrock Dublin, and Eden One Health Club Dublin.

This article is for information purposes and doesn’t replace medical advice.