😥 A Lot of Hair Falls Out When I Wash My Hair — Is It Hair Loss?

How much hair loss when washing your hair is within the normal range?

Hello, this is Yonsei Bomvit Dermatology.

“When I wash my hair, the drain is full of hair.”

“Could this be the start of hair loss?”

“How many strands a day is normal to lose?”

Hair shedding happens to everyone as a natural phenomenon,

but many people feel anxious because they confuse hair loss with normal shedding.

Today, I’ll explain the normal range of hair that falls out when washing your hair,

and when you should visit a hospital.

Hair falling out when washing your hair: what is the normal range?

1️⃣ How many hairs falling out per day is normal?

The human scalp has an average of about 100,000 hairs,

and some of them shed every day and repeat the hair growth cycle as they grow back.

✔ Generally, losing about 100–200 hairs per day is within the normal range.

✔ When washing your hair, 50–100 hairs, and including drying and combing, a total of around 150 hairs at once is considered normal.

In general, about 10% of all hair is considered to be in the resting phase,

so you can think of about 10,000 hairs as being ready to shed at any time.

Because resting-phase hairs may shed more during seasonal changes or under various circumstances,

it is normal for around 200 hairs to fall out temporarily in a day.

📍 However, if you wash your hair every other day, or if you usually keep long hair tied up, you may feel that more hair falls out when you finally wash it.

In that case, it may simply be the amount from two days shedding at once, so there is no need to worry.

Also, for women with long hair, even if only a little more hair falls out, the amount of shed hair may look very large,

so there is no need to worry too much.

2️⃣ When could hair falling out during washing be a sign of hair loss?

If any of the following apply, it may not be simple natural shedding.

✔ Fine, short hairs are falling out

→ This can be a sign that the hair growth cycle is shortening, and it may be progressive hair loss.

✔ The crown or part line is gradually widening

→ A visible decrease in hair density

✔ The scalp is becoming more visible

→ Reduced number of hairs + decreased thickness

✔ Hair comes out in clumps when washing or combing

→ Possible acute hair loss (telogen effluvium, postpartum hair loss, etc.)

📍 In particular, if fine, short hairs rather than thick hairs are noticeably falling out,

it means the vitality of the hair follicles may be weakening, so a hospital visit is recommended.

3️⃣ How can you tell the difference between hair loss and natural shedding?

Item	Natural shedding	Possible hair loss
Amount shed	100–200 hairs per day	More than 200 hairs per day 지속
Hair thickness	Mainly thick, long hairs	More fine, short hairs
Visible changes	None	Widening part line, visible crown
Scalp condition	Healthy, no inflammation	Sensitive, oily, flaking, itchy
Accompanying symptoms	None	Itching, pimples, dandruff, excess sebum

📍 More important than the simple number is the pattern of hair change and the condition of the scalp.

4️⃣ How does Yonsei Bomvit Dermatology diagnose this?

✔ Check follicle condition and density with a scalp diagnostic device

✔ Analyze hair thickness and hair root thickness

✔ If necessary, perform hormone tests and assess iron/nutritional status

✔ Differentiate male pattern hair loss, female pattern hair loss, telogen effluvium, and more

📍 At an early stage, it may look like simple excessive shedding,

but if it progresses, recovery can become difficult, so prompt diagnosis is important.

✨ In closing

It is natural for hair to fall out every day,

but you need to look at the amount, quality, and changes in the scalp together.

“Hair loss begins not with the number of hairs falling out, but with changes in the hairs that fall out.”

Yonsei Bomvit Dermatology

carefully analyzes the condition of the hair follicles and scalp,

clearly distinguishes whether it is hair loss or not,

and helps you start the necessary treatment quickly.

📍 Yonsei Bomvit Dermatology

📞 02-837-8275

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