A widening part at sixteen is not automatically “dad’s baldness starter pack.” Tight styles, crash diets, and autoimmune patches live in the same waiting room.
Paediatric and adolescent dermatology starts with history: crash weight loss, new meds (including isotretinoin), menstrual change, fever, tight braids, and family pattern. Traction alopecia from ponytails is preventable and is a different page on this site. Alopecia areata is patchy and needs a dermatologist, not minoxidil from a parent’s cabinet. Tinea capitis is an infection — oral antifungals in kids are a specialist decision. The American Academy of Pediatrics and AAD both treat unexplained hair loss as a reason to examine, not to mail-order adult DHT blockers. U.S. oral finasteride 1 mg is labelled for men with androgenetic alopecia, not as a teen OTC. This is not medical advice.
Labs, if ordered, follow the exam — ferritin, thyroid, and others are not a shopping list. High-dose biotin still interferes with some assays. Minoxidil in adolescents is a clinician call; foam still wants a dry scalp and still stings eyes. Do not crush tablets. Do not shame a child for a part line.
Eating-disorder concern, rapid weight loss, or body-image distress needs the paediatric team, not a hair-fiber spray as therapy. This is not medical advice.
無料のセルフチェックを試す →よくある質問
Can a teen use dad’s finasteride?
No sharing. The 1 mg U.S. label is not a family bottle. Pregnancy handling rules still exist in the house.
Is a receding temple always AGA?
Maturation of the hairline can be normal. True miniaturisation needs exam. Photos over months help.
School sports and helmets?
Friction can break shafts. Pattern loss still needs a diagnosis. Helmets are not a DHT drug.
Should we wait until 18?
Waiting without an exam can miss tinea or areata. Age limits apply to some drugs; they do not apply to looking at the scalp.
もっと読む
⚠️ 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