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Obstetrics and gynaecology

Obstetrics and gynaecology is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Obstetrics and gynaecology rather than just read about it. In short: Obstetrics and gynaecology (also spelled as obstetrics and gynecology; abbreviated as Obst and Gynae, O&G, OB-GYN and OB/GYN) is the medical specialty that encompasses the two subspecialties of obstetrics (covering pregnancy, childbirth, and the postpartum period) and gynaecology (covering the health of the female reproductive system – vagina, uterus, ovaries, and breasts). The specialization is an important part of…

Obstetrics and gynaecology — main illustration
Obstetrics and gynaecology — illustration

Key takeaways

  • Obstetrics and gynaecology belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Obstetrics and gynaecology to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Obstetrics and gynaecology from memory before moving on to harder problems.

Reference excerpt

Obstetrics and gynaecology (also spelled as obstetrics and gynecology; abbreviated as Obst and Gynae, O&G, OB-GYN and OB/GYN) is the medical specialty that encompasses the two subspecialties of obstetrics (covering pregnancy, childbirth, and the postpartum period) and gynaecology (covering the health of the female reproductive system – vagina, uterus, ovaries, and breasts). The specialization is an important part of care for women's health. Postgraduate training programs for both fields are usually combined, preparing the practising obstetrician-gynecologist to be adept at the care of female reproductive organs' health and at the management of pregnancy, although many doctors go on to develop subspecialty interests in one field or the other.

Scope

United States According to the American Board of Obstetrics and Gynecology (ABOG), which is responsible for issuing OB-GYN certifications in the United States, the first step to OB-GYN certification is completing medical school to receive an MD or DO degree. From there doctors must complete a four-year OB-GYN residency program approved by the Accreditation Council for Graduate Medical Education (ACGME). For the 2021 Electronic Residency Application Service (ERAS) match, there were 277 OB-GYN residency programs accepting applicants. In their fourth year of residency, with an affidavit from their director to confirm program completion, OB-GYN residents can choose whether to begin the board certification process by applying to take the ABOG Qualifying Exam, which is a written test. If residents pass the Qualifying Exam, demonstrating they possess the knowledge and skills to potentially become certified OB-GYNs, they are then eligible to sit for the oral Certification Exam. Before the Certification Exam, residents must also gather a list of patient cases they've worked on throughout their residency to demonstrate their competence and experience in OB-GYN patient care. Residents then sit for the three-hour oral exam at ABOG's test center, and if they pass the exam, they become "board-certified" OB-GYNs. Since 2013, at least 82% of all Certifying Exam examinees have passed. This adds up to 11–14 years of education and practical experience. The first 7–9 years are general medical training. Experienced OB-GYN professionals can seek certifications in sub-specialty areas, including maternal and fetal medicine. See Fellowship (medicine).

United Kingdom All doctors must first complete medical school and obtain a MBBS or equivalent certification. This portion typically takes five years. Following this, they are eligible for provisional registration with the General Medical Council. They then must complete two years of foundation training. After the first year of training is complete, trainees are eligible for full registration with the General Medical Council. After the foundation training is complete applicants take the Part 1 MRCOG examination administered by the Royal College of Obstetricians and Gynaecologists. There are an additional seven years of training after this, and two more exams (Part 2 and Part 3 MRCOG exams), which adds up to nine years total minimum in training, although some trainees may take longer.

Subspecialties Examples of subspecialty training available to physicians in the US are:

Maternal-fetal medicine: an obstetrical subspecialty, sometimes referred to as perinatology, that focuses on the medical and surgical management of high-risk pregnancies and surgery on the fetus to reduce morbidity and mortality. Reproductive endocrinology and infertility: a subspecialty that focuses on the biological causes and interventional treatment of infertility Gynecological oncology: a gynaecologic subspecialty focusing on the medical and surgical treatment of women with cancers of the reproductive organs Female pelvic medicine and reconstructive surgery: a gynaecologic subspecialty focusing on the diagnosis and surgical treatment of women with urinary incontinence and prolapse of the pelvic organs. Sometimes referred to by laypersons as "female urology" Advanced laparoscopic surgery Family planning: a gynaecologic subspecialty offering training in contraception and pregnancy termination (abortion) Pediatric and adolescent gynaecology Menopausal and geriatric gynaecology Of these, only the first four are truly recognized sub-specialties by the Accreditation Council for Graduate Medical Education (ACGME) and the American Board of Obstetrics and Gynecology (ABOG). The other subspecialties are recognized as informal concentrations of practice. To be recognized as a board-certified subspecialist by the American Board of Obstetrics and Gynecology or the American Osteopathic Board of Obstetrics and Gynecology, a practitioner must have completed an ACGME or AOA-accredited residency and obtained a Certificate of Added Qualifications (CAQ) which requires an additional standardized examination. Additionally, physicians of other specialties may become trained in Advanced Life Support in Obstetrics (ALSO), a short certification that equips them to better manage emergent OB/GYN situations.

Common procedures There are many procedures that can be provided to people by OB/GYNs. Some procedures may include:

… excerpt ends here. Continue reading the full article.

Illustrations

Obstetrics and gynaecology: Leopold's maneuvers
Leopold's maneuvers

Worked examples

Example 1 — a first encounter with Obstetrics and gynaecology

Start with the simplest possible case. Write down what Obstetrics and gynaecology claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Obstetrics and gynaecology before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Obstetrics and gynaecology ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Obstetrics and gynaecology

In research
Obstetrics and gynaecology appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Obstetrics and gynaecology in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Obstetrics and gynaecology is common in secondary-school and first-year university syllabi. It links to neighbouring topics Gynaecology, Obstetrics, so understanding it makes those chapters shorter.
In everyday life
Look for Obstetrics and gynaecology outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Obstetrics and gynaecology in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Obstetrics and gynaecology means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Obstetrics and gynaecology out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Obstetrics and gynaecology in simple terms?

Obstetrics and gynaecology (also spelled as obstetrics and gynecology; abbreviated as Obst and Gynae, O&G, OB-GYN and OB/GYN) is the medical specialty that encompasses the two subspecialties of obstetrics (covering pregnancy, childbirth, and the postpartum period) and gynaecology (covering the heal…

Why does Obstetrics and gynaecology matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Obstetrics and gynaecology?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Obstetrics and gynaecology.

Tags

  • Gynaecology
  • Obstetrics

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