Science Explorer Interactive view Map
Subfield · Medicine

Obstetrics and Gynecology research

Obstetrics and Gynecology is a subfield of Medicine. Science Explorer counts 289k research works in it since 1950. 17.6% of them reached the world's top 10% most cited for their field and year.

In short: medical specialty.

Research works
289k
fractional, since 1950
In the world top 10%
51k
per year above
Top-10% rate
17.6%
share of its works in the world top 10%
Topics
8
Growth, 2013–17 → 2018–22
+45%
the tick is no change

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

What is Obstetrics and Gynecology research about, and what is growing?

By the world's output in 2019–23, its most used keywords are Maternal Mortality, Maternal Outcomes, Perinatal Outcomes, Placental Development, Preeclampsia, COVID-19. Gaining share since 2009–13: COVID-19, Pregnancy, Maternal Outcomes, Perinatal Outcomes, Maternal Mortality. Losing share: Hysteroscopic Treatment, Uterine Anomalies, Obstetric Fistula, Vesicovaginal Fistula.

▲ gaining share of this field◆ holding its share▼ losing share

Size is the world's fractional works in 2019–23 in the topics tagged with each word; colour compares the word's share of this field with 2009–13. Each links to the topic it comes from most.

All 19 words, with their numbers
  1. Maternal Mortality27k▲ 1.39×2 topics
  2. Maternal Outcomes21k▲ 1.98×2 topics
  3. Perinatal Outcomes21k▲ 1.98×2 topics
  4. Placental Development17k◆ 0.88×1 topic
  5. Preeclampsia17k◆ 0.88×1 topic
  6. COVID-1911k▲ 13×1 topic
  7. Pregnancy11k▲ 13×1 topic
  8. Cesarean Section10k◆ 1.06×1 topic
  9. Vaginal Birth10k◆ 1.06×1 topic
  10. Cervical Cancer10k▼ 0.85×1 topic
  11. Endometrial Carcinoma10k▼ 0.85×1 topic
  12. Gestational Diabetes Mellitus9,762◆ 1.02×1 topic
  13. Maternal Obesity9,762◆ 1.02×1 topic
  14. Uterine Fibroids7,819▼ 0.78×1 topic
  15. Uterine Leiomyoma7,819▼ 0.78×1 topic
  16. Hysteroscopic Treatment5,610▼ 0.66×1 topic
  17. Uterine Anomalies5,610▼ 0.66×1 topic
  18. Obstetric Fistula4,716▼ 0.74×1 topic
  19. Vesicovaginal Fistula4,716▼ 0.74×1 topic

Which countries lead Obstetrics and Gynecology research?

On research quality in 2022–2025, the United States, China and the United Kingdom rank highest in Obstetrics and Gynecology. By volume, the United States and China publish the most (11k and 8.1k works in 2022–2025).

By research quality, 2022–2025

  1. 1 United States · #1 all time 17.4% top 10% · 11k works
  2. 2 China · #3 all time 21.8% top 10% · 8.1k works
  3. 3 United Kingdom · #2 all time 24.3% top 10% · 2.5k works
  4. 4 Italy · #6 all time 26.3% top 10% · 1.9k works
  5. 5 Canada · #4 all time 22.3% top 10% · 1.5k works
  6. 6 Australia · #5 all time 24.1% top 10% · 1.5k works
  7. 7 India · #12 all time 6.0% top 10% · 4.3k works
  8. 8 France · #7 all time 17.7% top 10% · 1.2k works
  9. 9 Netherlands · #8 all time 27.3% top 10% · 722 works
  10. 10 Spain · #10 all time 18.7% top 10% · 1.2k works

The track on each row is that row’s top-10% rate. The ranking itself is the composite score, which the rate is only one part of.

Of 46 countries ranked in Obstetrics and Gynecology. Composite of field-normalised excellence (50%), output (30%) and citations (20%); the bracket is the all-time rank.

All countries ranked in Obstetrics and Gynecology

By volume, 2022–2025

  1. 1 United States 11k works
  2. 2 China 8.1k works
  3. 3 India 4.3k works
  4. 4 United Kingdom 2.5k works
  5. 5 Türkiye 2k works
  6. 6 Brazil 2k works
  7. 7 Italy 1.9k works
  8. 8 Japan 1.9k works
  9. 9 Australia 1.5k works
  10. 10 Canada 1.5k 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: 30.8%China: 21.9%India: 11.7%United Kingdom: 6.7%6 others listed: 29.0%31%largest
United States11k · 30.8%China8,111 · 21.9%India4,341 · 11.7%United Kingdom2,473 · 6.7%6 others listed11k · 29.0%

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

Which institutions lead Obstetrics and Gynecology research?

Harvard University (United States) ranks first in Obstetrics and Gynecology on research quality in 2022–2025, followed by Johns Hopkins University and Istituti di Ricovero e Cura a Carattere Scientifico.

By research quality, 2022–2025

  1. 1 Harvard University United States · Cambridge · #1 all time 28.9% top 10% · 150 works
  2. 2 Johns Hopkins University United States · Baltimore · #2 all time 26.6% top 10% · 134 works
  3. 3 Istituti di Ricovero e Cura a Carattere Scientifico Italy · Rome 28.3% top 10% · 88 works
  4. 4 China Medical University China · Shenyang 28.7% top 10% · 100 works
  5. 5 Peking University China · Beijing · #92 all time 22.4% top 10% · 148 works
  6. 6 University of Gondar Ethiopia · Gonder 42.3% top 10% · 72 works
  7. 7 Northwestern University United States · Evanston · #5 all time 24.7% top 10% · 110 works
  8. 8 Monash University Australia · Melbourne · #29 all time 30.9% top 10% · 88 works
  9. 9 Agostino Gemelli University Polyclinic Italy · Rome 27.6% top 10% · 93 works
  10. 10 King's College London United Kingdom · London · #28 all time 30.9% top 10% · 92 works

The track on each row is that row’s top-10% rate. The ranking itself is the composite score, which the rate is only one part of.

Of 98 institutions above the floor of 40 fractional works in Obstetrics and Gynecology.

Top 100 Obstetrics and Gynecology institutions

By volume, 2022–2025

  1. 1 University of North Carolina at Chapel HillUnited States 238 works
  2. 2 Sağlık Bilimleri ÜniversitesiTürkiye 217 works
  3. 3 All India Institute of Medical SciencesIndia 170 works
  4. 4 Sichuan UniversityChina 161 works
  5. 5 Harvard UniversityUnited States 150 works
  6. 6 Peking UniversityChina 148 works
  7. 7 Obstetrics and Gynecology Hospital of Fudan UniversityChina 144 works
  8. 8 Johns Hopkins UniversityUnited States 134 works
  9. 9 Chinese Academy of Medical Sciences & Peking Union Medical CollegeChina 133 works
  10. 10 Ain Shams UniversityEgypt 127 works

Who are the leading researchers in Obstetrics and Gynecology?

Among the most productive authors in Obstetrics and Gynecology, Zulfiqar A Bhutta, Yousef Khader and Elisabete Weiderpass rank highest on the composite score.

  1. 1 Zulfiqar A Bhutta Pakistan · #29 worldwide 7k citations · 258 works
  2. 2 Yousef Khader Jordan · #42 worldwide 7.7k citations · 152 works
  3. 3 Elisabete Weiderpass France · #44 worldwide 6k citations · 183 works
  4. 4 Patrick M. Bossuyt Netherlands · #59 worldwide 14k citations · 137 works
  5. 5 Cyrus Cooper United Kingdom · #144 worldwide 7.2k citations · 486 works
  6. 6 Mark I. McCarthy United Kingdom · #148 worldwide 4.9k citations · 194 works
  7. 7 Nikhil Tandon India · #672 worldwide 3.8k citations · 99 works
  8. 8 Dana Dabelea United States · #737 worldwide 2.4k citations · 145 works
  9. 9 Douglas A. Levine United States · #878 worldwide 2.7k citations · 101 works
  10. 10 C. Noel Bairey Merz United States · #1,130 worldwide 2k citations · 155 works

Re-ranked on the composite score from the 4,939 highest-output authors in Obstetrics and Gynecology. Identities come from OpenAlex author disambiguation, which occasionally merges or splits people.

Top 100 Obstetrics and Gynecology researchers

Where is Obstetrics and Gynecology research done?

The largest centres of Obstetrics and Gynecology research in 2022–2025 are Beijing (China), London (United Kingdom), Shanghai (China) and New York (United States). Among places with at least 20 works in it, it is an unusually large share of all research in Crofton.

Largest cities, 2022–2025

  1. 1 Beijing China 1k works
  2. 2 London United Kingdom 875 works
  3. 3 Shanghai China 657 works
  4. 4 New York United States 615 works
  5. 5 Istanbul Türkiye 589 works
  6. 6 Guangzhou China 505 works
  7. 7 Tokyo Japan 482 works
  8. 8 Seoul South Korea 476 works
  9. 9 New Delhi India 449 works
  10. 10 Chengdu China 430 works

Where it is the local speciality

  1. CroftonUS · 28.6 works59×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Obstetrics and Gynecology than the world average.

See Obstetrics and Gynecology on the map

Obstetrics and Gynecology research by country

The best places for Obstetrics and Gynecology research inside each country, with that country's researchers and world standing.

Where is the best place to study Obstetrics and Gynecology?

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

0%20%40%mean 22.6%fractional works in this node (log) →share in the world top 10% →University of Gondar: 72, 42.3%Mekelle University: 35, 26.2%Iranshahr University: 50, 13.9%Carol Davila University of Medicine and Pharmacy: 58, 19.8%Victor Babeș University of Medicine and Pharmacy Timișoara: 36, 37.9%Karolinska Institutet: 91, 30.4%Institute of Medical Sciences: 127, 3.4%Sağlık Bilimleri Üniversitesi: 217, 6.9%Fujian Medical University: 120, 23.8%Baylor College of Medicine: 110, 21.4%University of GondarMekelle UniversityCarol Davila Univers…Iranshahr University
above the meannear itbelow it

One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.

#UniversityScoreTop 10%SpecialisationWorksGrowth
1 University of GondarEthiopia 72.842.3%8.2×72 +248.5%
2 Mekelle UniversityEthiopia 62.626.2%11.9×35 +464.2%
3 Iranshahr UniversityIran 55.713.9%10.3×50 +230.0%
4 Carol Davila University of Medicine and PharmacyRomania 51.519.8%6.2×58 +264.5%
5 Victor Babeș University of Medicine and Pharmacy TimișoaraRomania 49.337.9%6.9×36 +20.6%
6 Karolinska InstitutetSweden 48.730.4%3.5×91 +19.9%
7 Institute of Medical SciencesIndia 48.53.4%6.8×127 +186.8%
8 Sağlık Bilimleri ÜniversitesiTürkiye 48.36.9%6.6×217 —
9 Fujian Medical UniversityChina 47.923.8%5.9×120 +15.4%
10 Baylor College of MedicineUnited States 47.421.4%4.8×110 +80.4%

Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.

Is Obstetrics and Gynecology research growing?

Output in 2018–2022 was 45% higher than in 2013–2017, peaking in 2021. The fastest-growing topics are COVID-19 Impact on Reproduction, Gestational Diabetes Research and Management and Maternal and Perinatal Health Interventions.

19801990200020102020
grewheldshrank

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

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.

  1. COVID-19 Impact on Reproduction+289%
  2. Gestational Diabetes Research and Management+152%
  3. Maternal and Perinatal Health Interventions+131%
  4. Pregnancy and preeclampsia studies+100%
  5. Uterine Myomas and Treatments+79%
  6. Endometrial and Cervical Cancer Treatments+74%
← shrinkingno changegrowing →

Growth in output from 2005–09 to 2015–19. Every topic is a page of its own.

What does Obstetrics and Gynecology include?

Pregnancy and preeclamps…70kPregnancy and preeclampsia studies: 70k fractional worksEndometrial and Cervical Cancer Treatments: 41k fractional worksMaternal and Perinatal Health Interventions: 40k fractional worksGestational Diabetes Res…36kGestational Diabetes Research and Management: 36k fractional worksUterine Myomas and Treat…34kUterine Myomas and Treatments: 34k fractional worksGynecological conditions and treatments: 27k fractional worksUreteral procedures and complications: 24k fractional worksCOVID-19 Impact on Repro…16kCOVID-19 Impact on Reproduction: 16k fractional works

Area is fractional works in that topic. Every name below is a page of its own.