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Topic · Urology

Hair Growth and Disorders

Hair Growth and Disorders is a research topic within Urology. Science Explorer counts 17k research works in it since 1950. 10.2% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the regulation and function of hair follicle stem cells, including their role in skin development, regeneration, and the maintenance of the epidermal niche. It explores the signaling pathways such as Wnt signaling, the contribution of bulge cells, and the interactions between epithelial and mesenchymal cells. Additionally, it delves into the implications for conditions like alopecia areata.

  • Hair Follicle
  • Stem Cells
  • Epidermal Niche
  • Wnt Signaling
  • Skin Development
  • Regeneration
  • Bulge Cells
  • Cycling
  • Epithelial-Mesenchymal Interactions
  • Alopecia Areata
Research works
17k
fractional, since 1950
In the world top 10%
1.7k
per year above
Top-10% rate
10.2%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+43%
the tick is no change
Largest producer
United States
30% of the 10 largest, 2022-now
Hair Growth and Disorders

This ranks research output and citation impact. It says nothing about the quality of diagnosis, treatment or care.

Which countries lead Hair Growth and Disorders research?

By volume, the United States and China publish the most (981 and 821 works in 2022-now).

By volume, 2022-now

  1. 1 United States 981 works
  2. 2 China 821 works
  3. 3 India 399 works
  4. 4 South Korea 212 works
  5. 5 United Kingdom 153 works
  6. 6 Japan 141 works
  7. 7 Egypt 139 works
  8. 8 Spain 133 works
  9. 9 Brazil 132 works
  10. 10 Germany 124 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

United States: 30.3%China: 25.4%India: 12.3%South Korea: 6.6%6 others listed: 25.4%30%largest
United States981 · 30.3%China821 · 25.4%India399 · 12.3%South Korea212 · 6.6%6 others listed822 · 25.4%

Shares of the rows listed above, not of the whole node.

Which institutions lead Hair Growth and Disorders research?

By volume in 2022-now, University of Miami publishes the most Hair Growth and Disorders research, followed by Harvard University and Zhejiang University.

By volume, 2022-now

  1. 1 University of MiamiUnited States 55 works
  2. 2 Harvard UniversityUnited States 44 works
  3. 3 Zhejiang UniversityChina 30 works
  4. 4 New York UniversityUnited States 29 works
  5. 5 Southern Medical UniversityChina 26 works
  6. 6 All India Institute of Medical SciencesIndia 25 works
  7. 7 Chinese Academy of Medical Sciences & Peking Union Medical CollegeChina 24 works
  8. 8 Fudan UniversityChina 24 works
  9. 9 Cornell UniversityUnited States 22 works
  10. 10 Shanghai Jiao Tong UniversityChina 21 works

Who are the leading researchers in Hair Growth and Disorders?

The most-cited researchers publishing on Hair Growth and Disorders include Jun Wang, Hans C. Clevers and Amirhossein Sahebkar.

  1. 1 Jun Wang China 340k citations
  2. 2 Hans C. Clevers Netherlands 260k citations
  3. 3 Amirhossein Sahebkar Iran 258k citations
  4. 4 Ralph B. D’Agostino United States 255k citations
  5. 5 Cornelia M. van Duijn Netherlands 250k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

What are the most cited papers in Hair Growth and Disorders?

The most cited paper in Hair Growth and Disorders is "Polycystic Ovary Syndrome" (Stephen Franks, 1995), with 2,474 citations. Next come "Label-retaining cells reside in the bulge area of pilosebaceous unit: Implications for follicular stem cells, hair cycle, and skin carcinogenesis" (2,295) and "Defining the Epithelial Stem Cell Niche in Skin" (2,063).

Most cited papers
#PaperReleasedCitations
1 Polycystic Ovary Syndrome Stephen Franks · New England Journal of Medicine 28 Sep 1995 2,474
2 Label-retaining cells reside in the bulge area of pilosebaceous unit: Implications for follicular stem cells, hair cycle, and skin carcinogenesis George Cotsarelis, Tung‐Tien Sun, Robert M. Lavker · Cell Jun 1990 2,295
3 Defining the Epithelial Stem Cell Niche in Skin Tudorita Tumbar, Géraldine Guasch, Valentina Greco et al. · Science Open access 15 Dec 2003 2,063
4 Socializing with the Neighbors Elaine V. Fuchs, Tudorita Tumbar, Géraldine Guasch · Cell Open access Mar 2004 1,721
5 Polycystic ovary syndrome: a complex condition with psychological, reproductive and metabolic manifestations that impacts on health across the lifespan Helena Jane Teede, Amanda A. Deeks, Lisa Moran · BMC Medicine Open access 30 Jun 2010 1,587
All 100 most cited papers, with filters and sorting

Where is Hair Growth and Disorders research done?

The largest centres of Hair Growth and Disorders research in 2022-now are Beijing (China), New York (United States), Seoul (South Korea) and Shanghai (China). Among places with at least 20 works in it, it is an unusually large share of all research in Coral Gables.

Largest cities, 2022-now

  1. 1 BeijingChina 129 works
  2. 2 New YorkUnited States 106 works
  3. 3 SeoulSouth Korea 105 works
  4. 4 ShanghaiChina 83 works
  5. 5 GuangzhouChina 63 works
  6. 6 HangzhouChina 55 works
  7. 7 Coral GablesUnited States 54 works
  8. 8 LondonUnited Kingdom 53 works
  9. 9 TehranIran 51 works
  10. 10 TokyoJapan 47 works

Where it is the local speciality

  1. Coral GablesUS · 54.0 works24×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Hair Growth and Disorders than the world average.

See Hair Growth and Disorders on the map

Where is the best place to study Hair Growth and Disorders?

Among universities, judged by research, University of Miami, Harvard University and Zhejiang University score highest, combining citation excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%10%20%mean 15.32%fractional works in this field (log) →share of work in the world top 10% →Zhejiang UniversityUniversity of TorontoUniversity of MiamiHarvard University
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Citation excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1University of MiamiUnited States 72.012.1%22.1×55 +18.3%
2Harvard UniversityUnited States 66.911.5%3.5×44 +0.2%
3Zhejiang UniversityChina 66.220.1%2.8×30 +181.9%
4University of TorontoCanada 64.018.4%2.5×20 +95.5%
5Southern Medical UniversityChina 63.118.2%10.3×26 +44.3%
6Yangzhou UniversityChina 61.922.3%7.0×15 +63.4%
7Yale UniversityUnited States 61.014.5%4.2×18 +48.7%
8New York UniversityUnited States 58.35.0%6.3×29 +134.2%
9Fudan UniversityChina 56.914.5%3.8×24 +111.4%
10Chinese Academy of Medical Sciences & Peking Union Medical CollegeChina 56.516.6%5.6×24 +116.6%

Universities only. The score blends citation excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.

Every institution in Hair Growth and Disorders, country by country

Is Hair Growth and Disorders research growing?

Output in 2022-2025 was 43% higher than in 2018-2021, peaking in 2025. The fastest-growing topics are Hair Growth and Disorders.

still counting19801990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Hair Growth and Disorders as a percentage of every work published that year, 0.018% in 2024.

still counting0.010%0.020%0.030%Hair Growth and Disorders0.022% in 202519801990200020102020

Fractional works of Hair Growth and Disorders over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting5%10%15%Hair Growth and Disorders10.5% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

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