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"My hair has been thinning suddenly lately." "I thought it was AGA, but this seems different."—To those of you who searched for this information because of such concerns.

 

Thinning hair is not only a cosmetic concern but also a sign from your body. Especially in Tokyo and the Ginza area, where aesthetic medicine, dermatology, and cosmetic surgery clinics are readily available and there are plenty of places to seek advice, it’s important to first identify the cause.

 

In addition to scalp conditions, systemic changes—such as thyroid disorders, nutritional imbalances, and autoimmune conditions—can also lead to “hair loss disorders.” In this article, we’ll clearly explain, from a doctor’s perspective, when you should seek medical attention and how to approach the issue.

 

Doctors' Point

If you’ve noticed that “you’ve suddenly started going bald” or “your hair loss has clearly increased,” AGA isn’t necessarily the only cause.

 

Hair removal isIt is caused by various illnesses and physical changes, such as alopecia areata, thyroid disorders, nutritional deficiencies (such as iron deficiency), tinea capitis, autoimmune diseases, medications, and telogen effluvium.There are times when...

 

What's particularly important isn't just "where you're losing your hair," but also,Over what period of time and in what pattern did your hair thin?is.

 

Although AGA generally progresses gradually, if hair loss occurs suddenly in circular patches, spreads rapidly across the entire scalp, or is accompanied by redness, flaking, or pain on the scalp, it is necessary to consider other possible conditions.

 

In addition, in cases of alopecia, the hair follicles remain intact.Non-scarring AlopeciaAnd so, the hair follicle itself is destroyedCicatricial Alopecia... exists. Since cicatricial alopecia can lead to irreversible hair loss, early diagnosis is particularly important.

 

Rather than self-diagnosing “hair loss = AGA” and starting AGA treatment, it’s important to first determine the cause if your hair loss pattern isn’t typical.

AGA Isn't the Only "Hair Loss Condition"

"Going bald" is not the name of a disease; medically speaking, it is a symptom known as hair loss.

 

There isn't just one cause.

Common causes include AGA (androgenetic alopecia), female-pattern hair loss, alopecia areata, telogen effluvium, tinea capitis, thyroid disorders, nutritional deficiencies such as iron deficiency, autoimmune diseases, cicatricial alopecia, drug-induced alopecia, traction alopecia, trichotillomania, and syphilis. Since treatment varies significantly depending on the cause, the first step is to identify the specific pattern.

Clues Can Be Found in the Timeline and Distribution

• Gradual progression (over the course of years): Focused on the hairline and crown → AGA is the most likely cause

• Sudden Appearance of Round Bald Patches: Consider Alopecia Areata, Tinea Capitis, etc.

• Sudden, widespread hair loss over a short period: telogen effluvium, medications, thyroid disorders, nutritional imbalances, etc.

• Accompanied by redness, pain, or scaling: Be aware of infections, inflammatory alopecia, and scarring alopecia

Characteristics of Common "Hair Loss Conditions"

AGA (Androgenetic Alopecia)

Due to genetics and the effects of male hormones, the growth phase is shortened, and the hair becomes finer and shorter.

 

It progresses slowly over the course of years, starting from the M-shaped receding hairline, the hairline, and the crown. Rather than losing a large amount of hair all at once one day, it typically becomes noticeably thin before you even realize it.

Female-Pattern Hair Loss

The part in the hair widens, and the hair on the crown thins diffusely. The hairline is often preserved, so it is important to rule out causes such as iron deficiency, thyroid disorders, postpartum hair loss, and rapid weight loss.

Alopecia Areata

Round or oval-shaped patches of hair loss appear suddenly. This condition is believed to involve an autoimmune mechanism, and there are forms in which multiple patches appear simultaneously, as well as a form affecting the entire scalp and a generalized form that includes the eyebrows and eyelashes.

 

In reality, stress alone cannot explain it, and there is significant individual variation in how the condition progresses.

Telogen Effluvium

High fever, surgery, childbirth, sudden weight loss, nutritional deficiencies, thyroid disorders, certain medications, and severe stress can all trigger a sudden, significant increase in overall hair loss several weeks to several months later.

 

While symptoms may subside once you calm down, the first step is to identify the cause.

Thyroid Disorders and Nutritional Disorders

In addition to hair loss, thyroid dysfunction may be accompanied by sensitivity to cold or heat, palpitations, weight changes, and fatigue.

 

Iron and zinc deficiencies can also contribute to hair loss. Avoid taking excessive amounts of supplements based on your own judgment, and be sure to get the necessary tests.

Infectious Diseases, Autoimmune Disorders, and Scarring Alopecia

Tinea capitis is often accompanied by scaling, redness, and brittle hair, and may require antifungal medication.

 

If chronic skin inflammation persists, it can destroy hair follicles and lead to irreversible scarring alopecia; therefore, early diagnosis and treatment are crucial.

Drug-Induced, Traction, Trichotillomania, Syphilis

Even medications other than anticancer drugs can cause telogen effluvium.

 

Information about daily life and overall health—such as the use of tight hairstyles, unconscious hair pulling, and syphilis (which causes so-called "patchy" hair loss)—can aid in the diagnosis.

When to Seek Medical Attention: Signs That You Should Consult a Doctor Immediately

• A circular patch of hair suddenly fell out, or the overall amount of hair decreased rapidly over a short period of time

• Accompanied by redness, pain, severe itching, or pus on the scalp

• Hair removal extends to eyebrows, eyelashes, and body hair

• The area where hair was removed is smooth, and the pores are less noticeable (suspected scarring).

• Accompanied by systemic symptoms such as a rash, severe fatigue, and sudden changes in body weight

On the other hand, if there is a clear trigger (such as a high fever or childbirth) and overall hair loss increases several months later, the condition may subside as is typical of telogen effluvium.

 

However, it can be difficult to distinguish this condition from other illnesses on your own, so please consider seeing a doctor if you notice any concerning changes that persist.

The Diagnostic Process and Approach to Testing

During the initial consultation, we will carefully ask about “when it started, whether it began suddenly or gradually, where it started, any changes in your health over the past few months, dieting, childbirth, medications, and family history.”

 

During the visual examination, check the distribution of hair loss, variations in hair thickness, broken hairs, and the presence of redness, scaling, pustules, or scars.

 

As needed, we may perform trichoscopy, fungal tests, blood tests (complete blood count, iron and ferritin levels, thyroid function, hormone levels, autoimmune markers, and syphilis screening), or a scalp biopsy. We do not perform all of these tests on every patient; rather, our basic approach is to conduct only the tests necessary based on the patient’s findings, ensuring neither overtesting nor under-testing.

How to Choose a Clinic in Ginza, Tokyo (Aesthetic Internal Medicine, Aesthetic Dermatology, and Cosmetic Surgery)

There are so many places to seek advice in urban areas like Tokyo and Ginza that it’s easy to get confused about where to go.

 

The initial diagnosis of thinning hair often begins in the fields of cosmetic dermatology or general dermatology, which are well-suited for identifying scalp inflammation, alopecia areata, tinea capitis, and scarring alopecia.

 

Cosmetic Internal Medicine excels at assessing internal factors such as hormones, nutrition, and thyroid function throughout the body, as well as providing lifestyle support.

 

The perspective of plastic surgery is also important when transitioning to surgical options in the future (such as when considering surgical techniques related to hair restoration).

 

At cosmetic dermatology clinics in Tokyo, you can expect a thorough examination to distinguish between AGA and other “hair loss conditions.”

 

At aesthetic medicine clinics in Ginza, you'll often find a supportive environment where it's easy to discuss comprehensive care based on assessments of iron deficiency, thyroid function, and nutritional status.

 

Since cosmetic surgery clinics comprehensively address a wide range of concerns—including not only hair loss but also body and facial issues—they may offer services such as Botox, liposuction, and breast augmentation through the same reception desk. However, when it comes to hair loss, the quickest way forward is to first have the cause determined by a cosmetic dermatologist or cosmetic physician.

 

Specifically, in Ginza, Tokyo, if you’re experiencing “unexplained hair loss” or “scalp redness,” you should visit a cosmetic dermatology clinic; if your condition “seems related to changes in your physical condition, menstrual cycle, or weight,” you should visit a cosmetic internal medicine clinic; and when you’re ready to compare and consider surgical treatment options, you should consult a cosmetic surgery clinic. This is the smoothest approach.

 

Since there are individual differences in each case, the transition is likely to be smoother at facilities where there is good coordination among the various departments.

Distinguishing Between Botox, Liposuction, Breast Augmentation, and Hair Loss Consultations

In the field of cosmetic medicine, it is not uncommon for a single clinic to offer a range of procedures, such as Botox for wrinkle reduction, liposuction for facial contouring and body sculpting, and breast augmentation.

 

As is the case at many cosmetic surgery, cosmetic dermatology, and cosmetic internal medicine clinics in Tokyo and Ginza, the treatment of hair loss begins with a medical evaluation to determine the cause of hair loss.

 

For example, while Botox can help reduce expression lines, its purpose differs from the diagnosis and treatment of alopecia itself. The same applies to liposuction and breast augmentation, which are intended for aesthetic contouring and body sculpting.

 

While some facilities offer consultations on Botox, liposuction, and breast augmentation all at once during a counseling session, when it comes to hair loss, the natural process is to first undergo a scalp evaluation at a cosmetic dermatology clinic and a nutritional and hormonal evaluation at a cosmetic internal medicine clinic, and then, if necessary, be referred to a cosmetic surgery clinic.

 

"We use Botox to smooth out facial wrinkles, while investigating the causes of hair loss to develop a treatment plan." “We’ll sculpt the body through liposuction, exercise, and nutrition, while addressing hair loss by evaluating the scalp and lifestyle habits.” “We’ll consider breast augmentation to enhance the décolletage, while for diffuse hair loss in women, we’ll check for iron deficiency and thyroid issues.”—By categorizing treatments by their specific goals in this way, overall satisfaction is more likely to increase.

 

Please note that the “Before & After” photos are merely examples; results, downtime, and duration may vary from person to person.

 

This is true for Botox, liposuction, and breast augmentation—and hair loss is another area where individual differences are significant.

 

When choosing a clinic in Ginza, Tokyo, that offers a range of services in cosmetic surgery, cosmetic dermatology, and cosmetic medicine, it’s a good idea to check whether they have a clear system in place for evaluating hair loss.

Perspective on Daily Life and Self-Care

• Avoid sudden dietary restrictions and be mindful of deficiencies in protein, iron, zinc, and vitamins.

• Be aware that temporary hair loss may increase several months later following a high fever or surgery.

• Avoid Tight Hairstyles and Excessive Use of Hair Extensions (to Prevent Traction Alopecia)

• Over-the-counter hair growth products are not a cure-all, so you should prioritize seeing a doctor if you experience scalp symptoms or sudden changes.

Frequently Asked Questions (FAQ)

I've suddenly started losing a lot of hair. Should I go to the doctor right away?

If you experience circular patches of hair loss, redness or pain on the scalp, or systemic symptoms—especially if your hair loss worsens rapidly over the course of a few weeks—we recommend seeking medical attention as soon as possible. If you’re unsure, start by visiting a cosmetic dermatology or cosmetic medicine clinic.

Can a blood test determine all the causes?

It’s not just about the blood test. The focus is on examining the pattern of hair loss, and based on our findings, we select the necessary tests—such as those for iron, thyroid function, hormones, and infectious diseases.

I was told it's stress-related. What should I do?

While rest and adjusting your daily routine can be helpful, it’s also important to check for any underlying conditions. Rather than waiting to see how things go on your own for an extended period, we recommend seeking an evaluation as soon as possible.

If I’m consulting with a cosmetic surgeon about Botox, liposuction, or breast augmentation, can I also have them look at my thinning hair?

If the clinic has both cosmetic dermatology and cosmetic internal medicine departments, you may be able to consult with both specialists at the same time. There are facilities like this in Ginza, Tokyo, so be sure to check with the front desk.

The Consultation Process and Subtle Guidance

If you organize the details—such as “how long the symptoms have lasted, where they started, and what symptoms you’ve been experiencing”—before your appointment, it will make the diagnostic process easier.

 

The Ginza area of Tokyo is home to numerous cosmetic dermatology, cosmetic internal medicine, and cosmetic surgery clinics, and while some of these facilities offer consultations on cosmetic procedures such as Botox, liposuction, and breast augmentation in addition to hair loss, the first step in addressing hair loss is identifying its cause.

 

If you'd like to find out if this is right for you, please choose a consultation service with no high-pressure sales tactics and feel free to reach out.

Summary

AGA isn’t the only condition that causes hair loss. The causes are diverse, ranging from alopecia areata and telogen effluvium to thyroid disorders, nutritional imbalances, infections, autoimmune disorders, medications, traction alopecia, trichotillomania, syphilis, and even scarring alopecia.

 

The key to distinguishing these conditions lies in the “timeline (sudden or gradual),” “distribution (where it appears),” and “scalp symptoms (redness, scaling, and presence or absence of pain).” Start by making a diagnosis, then take action based on the cause.

 

In Tokyo and Ginza, consultations are conducted primarily through cosmetic dermatology and cosmetic internal medicine clinics, in collaboration with cosmetic surgery clinics.

 

Even if you're considering cosmetic procedures such as Botox, liposuction, or breast augmentation, the first step in addressing thinning hair is to identify the cause.

 

Since results and progress vary from person to person, please don't make a decision based solely on the "Before & After" images—let's work together to find the best solution for you.

 

▷ Treatment Page for Thinning Hair (FAGA/AGA)

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