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Hair guideWhen should I see a dermatologist about hair loss?

When should I see a dermatologist about hair loss?

✓ 医学的に検証✍️ HairBase編集部📅 最終更新: 2026年6月14日⏱ 1分で読了
💡 まず結論

A dermatologist is the right specialist for most hair and scalp disease. Self-care is fine for mild, slow male-pattern thinning; red-flag patterns should not wait for another bottle of oil.

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Book sooner, not later, if hair comes out in round patches, if the scalp hurts, burns, oozes, or shows pustules, if the hairline looks scarred or shiny, if eyebrows or eyelashes go, if you are a child, or if shedding started abruptly after illness, childbirth, or a new drug and is emotionally overwhelming. Women with irregular periods, heavy bleeding, or signs of PCOS deserve a work-up, not only foam. Dark skin and textured hair have specific traction and central centrifugal cicatricial alopecia patterns that general internet advice misses.

Bring a medication list, photos from a year ago, and dates of diets, surgeries, or pregnancies. Ask about trichoscopy and whether a biopsy is needed. Primary-care blood tests (iron, thyroid, others as indicated) pair with dermatology rather than replacing it. Telehealth can start the story; scarring disease still wants in-person light. We are not your doctors. Emergency symptoms — fever with a boggy painful scalp, rapidly spreading infection — belong in urgent care, not a 6-month minoxidil trial.

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📚 根拠・出典

出典: AGA review (CCID) ↗

よくある質問

Can I just start minoxidil without seeing anyone?

Adults sometimes start OTC topical minoxidil for slow, typical male-pattern recession. If the pattern is atypical, female, patchy, or symptomatic, get examined first so you are not treating the wrong disease.

Is a trichologist the same as a dermatologist?

A medical dermatologist can diagnose inflammatory and scarring alopecias, prescribe, and biopsy. ‘Trichologist’ is used loosely and is not the same licence. For disease, pick a physician dermatologist.

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医療アドバイスではありません。 一般的な教育のみを目的とし、有資格の専門家による診断や治療に代わるものではありません。いかなる治療を開始・中止・変更する前にも、認定皮膚科医に相談してください。

⚠️ 医師の診察を受けるべきとき — 自己治療しないで

  • 突然のまだら、または円形のはげ
  • 赤み・鱗屑・膿・痛み・かゆみ(瘢痕性脱毛の可能性 — 緊急に治療を)
  • 切れ毛、または急速な脱毛
  • 全身性の徴候を伴う脱毛(体重減少、倦怠感、月経の変化、ニキビ、毛の増加)
  • 新しい薬の直後の脱毛
  • 子どものあらゆる脱毛
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