胸毛

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胸毛的生長與分布

1型 -胸毛於胸的中間

胸毛是指生長在人類男性頸與下腹之間的毛髮，通常是青春期後期才出現，屬於第二性徵。由於男性荷爾蒙的激發，有些男人在二十歲至三十歲才開始生長胸毛。一般而言，東亞男性，特別是中國男性，是幾乎不長胸毛的。許多人^[誰？]認為男性長一些胸毛是比較符合男性美的。

參見

Setty, LR. [http//www.ncbi.nlm.nih.gov/pmc/articles/PMC2610947/ Variations of the hair patterns of the chest of white males]. Journal of the National Medical Association. 1965, 57 (3): 211–4. PMID 5859933. PMC 2610947.
Setty, LR. [http//www.ncbi.nlm.nih.gov/pmc/articles/PMC2642024/ The circumareolo-pectoral series of chest hair patterns]. Journal of the National Medical Association. 1963, 55: 233–4. PMID 13988215. PMC 2642024.
Setty, LR. [http//www.ncbi.nlm.nih.gov/pmc/articles/PMC2642315/ The sterno-infraclavicular chest hair pattern]. Journal of the National Medical Association. 1962, 54: 486–7. PMID 13910983. PMC 2642315.
Setty, LR. [http//www.ncbi.nlm.nih.gov/pmc/articles/PMC2641808/ Bare areas in regions of pilosity of the chest and abdomen]. Journal of the National Medical Association. 1961, 53: 394–5. PMID 13750402. PMC 2641808.
Lookingbill, DP; Demers, LM; Wang, C; Leung, A; Rittmaster, RS; Santen, RJ. Clinical and biochemical parameters of androgen action in normal healthy Caucasian versus Chinese subjects. The Journal of Clinical Endocrinology and Metabolism. 1991, 72 (6): 1242–8. PMID 1827450.

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