Your split ends have been trying to tell you 7 things. Most women only hear one.

Your ends are see-through, and your roots are not

Hold your ponytail up against a window.

If the elastic end looks thick and the tip looks wispy, you have probably been told at some point that your hair is "just fine at the bottom." It is an easy thing to believe. Most women accept it and never think about it again.

But hair does not taper on its own. Every strand on your head left the same kind of follicle at roughly the same thickness. The reason the bottom looks see-through is not that your hair is fine down there.

It is that most of your strands never made it that far.

What you are looking at when you hold your ponytail to the light is not thin hair. It is the survivors.

They come back three weeks after a trim

You paid for the trim. You watched two inches hit the floor. And by the end of the month, they were back.

The usual conclusion is that the stylist did not take enough off. Sometimes that is true. Usually it is not.

Here is the part nobody explains at the chair: cutting off a split does not fix the strand it was on. The weakness was already there, further up, in a section of hair that has not reached the end of your length yet. You removed the symptom. The strand carried on being the strand it always was, and it split again a little higher.

Which is why some women feel like they are on a treadmill. Grow it, trim it, grow it, trim it, and somehow never end up any longer than they were two years ago.

A split does not begin at the tip. It begins somewhere in the middle, where the strand was built thin, and travels outward until it reaches the end and finally becomes visible to you.

Which means by the time you can see a split end, that strand has been failing for months.

Pull one hair between your fingers. It should stretch before it breaks.

Take a single hair out of your brush. Hold it between the thumb and finger of each hand, about an inch apart, and pull it slowly.

A strand that was built properly has give in it. It stretches, visibly, and springs back when you let go. Hair is one of the strongest fibres your body makes, and that elasticity is where the strength actually lives.

A strand that snaps straight away, with no stretch at all, has none of that left.

This is the only check on the list that is not about how your hair looks. It is about how much it can take before it gives. Which is the thing that decides everything, because every single day that hair gets brushed, tied, wrapped, slept on and dragged through the neck of a jumper.

A strand with give survives all of that. A strand without it does not.

The hairs in your brush are short

Go and look at your brush.

Most women glance at the amount and feel a small drop in their stomach. That is shedding, they think. That is my hair falling out.

Sometimes it is. But there is a way to tell, and it takes about four seconds.

A hair that shed naturally is the full length of your hair, and it has a tiny pale bulb on the root end, because it reached the end of its life cycle and let go. That is normal. Everyone loses some every day.

A hair that broke is short, and it has no bulb. Just a blunt or frayed end where it gave way.

Pull a few out of your brush and lay them side by side on the counter. If they are all different lengths and most of them are shorter than your hair actually is, you are not watching your hair fall out.

You are watching it come apart.

Two-inch hairs on your shirt and your pillow

You have seen these a thousand times. You brush them off your shoulder without thinking.

But here is the thing that stops women when they hear it: almost nothing on your head is two inches long.

A few of them will be new growth, and that is normal. New growth has a soft, tapered tip, because it has never been cut or broken. So look at the ends. If they are blunt or frayed rather than tapered, they are not new hairs at all. Each one is a piece of a hair, and the rest of it is still attached to your head, ending in a blunt tip you have been calling a split end.

Once you notice this, you cannot unnotice it.

It snaps when you take your hair tie out

Not tugs. Not pulls. Snaps.

You have been running the test from sign three every single night without meaning to.

That small crackling sound when you pull the elastic out at the end of the day is so ordinary that most women have never once questioned it. It happens to everyone, so it must be normal.

It is common. It is not normal.

A well-built strand stretches and comes back. Hair is remarkably elastic when it has been built properly, which is why you can pull a healthy hair between two fingers and watch it give a little and then recover.

A strand that snaps instead of stretching has run out of that give. And if you can hear it happening, it is happening a lot.

It has been the same length in every photo for three years

Open your camera roll and scroll back.

Not to last month. Go back three years, then two, then one, then look at yourself now. For most women reading this, the length barely moves.

The obvious conclusion is the one almost everyone reaches: this is my limit. This is just how long my hair gets. Some people can grow it, and I am not one of them.

Now do the arithmetic.

Scalp hair grows around half an inch a month on average. That is six inches a year. Across those three years, you grew roughly eighteen inches of hair.

Some of that was always going to go, and it is worth being straight about that. Every follicle runs on a cycle. It grows for a few years, rests, sheds, and starts again. So a steady amount of shedding is normal, and every head of hair has a length where growth and shedding balance out.

But for most women that balance point sits well past the shoulders. If your length has not moved in three years and it is nowhere near there, normal shedding is not what is holding you.

Eighteen inches grew. You are not wearing them. Something took them off on the way.