Vacinação pré-concepcional e contracepção hormonal ganham destaque no CBGO 2026

Preconception counseling should include vaccination review, not as an afterthought.
Doctors often miss opportunities to update vaccines before pregnancy, when live attenuated vaccines can no longer be safely given.

Em Belo Horizonte, especialistas reunidos no 63º Congresso Brasileiro de Ginecologia e Obstetrícia lembraram que os anos reprodutivos são uma janela de oportunidade preventiva frequentemente subestimada. Vacinas de vírus atenuados, contraceptivos hormonais e o manejo da adenomiose foram discutidos não como temas isolados, mas como partes de uma mesma conversa sobre como a medicina pode acompanhar as mulheres com mais intenção e profundidade ao longo de suas trajetórias reprodutivas.

  • Médicos frequentemente deixam passar oportunidades de vacinação durante os anos reprodutivos — uma lacuna que pode ter consequências sérias para gestações futuras.
  • Vacinas como MMR, varicela e febre amarela precisam ser aplicadas antes da concepção, com uma espera obrigatória de 28 dias, criando uma urgência de planejamento que muitas vezes não é comunicada às pacientes.
  • Contraceptivos hormonais são apresentados como ferramentas de saúde ampla — não apenas anticoncepcionais — com benefícios que vão da regulação do ciclo à redução do risco de cânceres ovarianos e endometriais.
  • A adenomiose impõe desafios específicos: o DIU hormonal surge como primeira linha de tratamento, mas sua inserção exige timing preciso para evitar expulsão durante fluxos intensos.
  • O congresso reposiciona o cuidado reprodutivo como uma prática preventiva contínua, onde cada consulta é uma chance de revisar vacinas, ajustar métodos contraceptivos e tratar condições que afetam a qualidade de vida.

No 63º Congresso Brasileiro de Ginecologia e Obstetrícia, realizado em Belo Horizonte entre os dias 27 e 30 de maio, um painel reuniu três especialistas para discutir questões que moldam o planejamento reprodutivo feminino: vacinação pré-concepcional, benefícios amplos dos contraceptivos hormonais e manejo da adenomiose.

Susana Aidé, professora da Universidade Federal Fluminense, abriu a discussão apontando uma falha comum: oportunidades de vacinação são perdidas durante os anos reprodutivos. Vacinas de vírus atenuados — como MMR, varicela, HPV, dengue e febre amarela — não podem ser administradas durante a gravidez nem em pessoas imunossuprimidas. Por isso, precisam ser aplicadas antes da concepção, com um intervalo de 28 dias antes de tentar engravidar. A revisão do cartão de vacinação, concluiu Aidé, deve ser parte central do aconselhamento pré-concepcional.

Silvio Silva, presidente da Sociedade de Ginecologia e Obstetrícia do Rio de Janeiro, ampliou o olhar sobre os contraceptivos hormonais. Além de prevenir a gravidez, esses métodos regulam o ciclo, melhoram o humor, reduzem dismenorreia e controlam sangramentos. Atuam aumentando a SHBG, proteína que se liga à testosterona livre, com efeitos cosméticos valorizados por muitas mulheres. No longo prazo, reduzem o risco de cânceres ovarianos e endometriais — benefícios que reposicionam a contracepção como ferramenta de manutenção da saúde.

Ilza Monteiro, da Universidade de Campinas, encerrou o painel abordando a adenomiose, condição em que tecido semelhante ao endométrio cresce na parede muscular uterina, causando dor intensa, sangramento anormal, anemia e, por vezes, infertilidade. O DIU hormonal é a primeira escolha terapêutica e contraceptiva para essas pacientes, pois age diretamente no útero — diferentemente dos anticoncepcionais orais, sem eficácia específica comprovada para a condição. Um detalhe prático foi destacado: a inserção deve ser agendada fora do período de fluxo intenso, para reduzir o risco de expulsão do dispositivo.

At the 63rd Brazilian Congress of Gynecology and Obstetrics in Belo Horizonte this week, a panel discussion zeroed in on three interconnected questions that shape how women plan their reproductive lives: which vaccines matter before pregnancy, what hormonal contraceptives actually do beyond preventing conception, and how to manage contraception when adenomiosis complicates the picture.

The conversation began with an uncomfortable truth: doctors often miss vaccination opportunities during reproductive years. Susana Aidé, a professor at the Federal Fluminense University in Rio de Janeiro, walked through the mechanics of why timing matters so much. Live attenuated vaccines—the ones made from weakened versions of actual viruses—trigger robust immune responses but cannot be given to pregnant women or people with compromised immunity. This creates a narrow window. Women need to get these shots before conception, then wait 28 days after vaccination before attempting pregnancy. The vaccines that demand this advance planning include the MMR shot, varicella, HPV, dengue, and yellow fever. In specific circumstances, doctors should also discuss hepatitis A, meningococcal, and pneumococcal vaccines. The takeaway: preconception counseling should include a careful review of the vaccination record, not as an afterthought but as a core part of reproductive planning.

The second panel speaker, Silvio Silva, president of the Rio de Janeiro Society of Gynecology and Obstetrics, shifted focus to what hormonal contraceptives do beyond their primary function. When prescribed thoughtfully, these methods regulate menstrual cycles, improve mood, and enhance quality of life. They work partly by increasing a protein called SHBG, which binds testosterone and reduces the amount circulating freely—a mechanism that produces visible cosmetic effects many women value. But the clinical benefits run deeper. Hormonal contraceptives meaningfully reduce painful periods, control bleeding, and help manage endometriosis. In the years approaching menopause, they can ease hot flashes and help preserve bone density. Perhaps most significantly, long-term users show reduced rates of ovarian and endometrial cancer. These are not minor side benefits; they reshape how doctors should think about contraception as a tool for health maintenance, not merely pregnancy prevention.

The third speaker, Ilza Monteiro from the University of Campinas, addressed a specific clinical challenge: adenomiosis, a condition where tissue similar to the uterine lining grows into the muscle wall itself. The disease causes severe menstrual pain, abnormal bleeding, anemia, and sometimes infertility—a constellation of problems that degrades quality of life. The hormonal IUD has emerged as the first-line treatment and contraceptive choice for these patients. Unlike oral contraceptives, which the current literature does not identify as specifically effective for adenomiosis, the IUD delivers hormone directly to the uterus. Monteiro emphasized one practical detail: timing matters. Inserting an IUD during heavy menstrual flow increases the risk that the device will be expelled. Doctors need to schedule insertion carefully, outside the window of peak bleeding.

The congress, held May 27 through 30 at the Minascentro in Belo Horizonte, brought together gynecologists, obstetricians, residents, medical students, and other professionals to discuss advances in women's health. The event is organized by Febrasgo, the Brazilian federation of gynecology and obstetrics associations. Beyond the contraception panel, the congress included a satellite symposium on genital ulcers, featuring a new international diagnostic algorithm. The broader message threading through the week's discussions is that the reproductive years deserve intentional preventive action—vaccination before pregnancy, contraceptive methods chosen not just for efficacy but for their health effects, and careful management of conditions like adenomiosis that reshape what contraception means for individual women.

Preconception counseling should include careful review of the vaccination record as a core part of reproductive planning
— Susana Aidé, Federal Fluminense University
Hormonal contraceptives, when well indicated, regulate the cycle, improve mood and quality of life, and reduce cancer risk
— Silvio Silva, Rio de Janeiro Society of Gynecology and Obstetrics
A Conversa do Hearth Outra perspectiva sobre a história
Inventor

Why does preconception vaccination matter so much? Can't women just get vaccinated while pregnant if needed?

Model

Live attenuated vaccines—the ones that work best immunologically—can't be given during pregnancy because they contain weakened virus that could theoretically harm the fetus. So the window closes once you're pregnant. That's why checking the vaccination record before conception is essential, not after.

Inventor

And the 28-day waiting period after vaccination—is that arbitrary or based on something specific?

Model

It's based on how long the vaccine virus can remain active in the body. The guideline exists to ensure the vaccine has cleared your system before pregnancy begins, minimizing any theoretical risk to a developing fetus.

Inventor

You mentioned that hormonal contraceptives reduce ovarian and endometrial cancer. How does that work?

Model

The mechanism isn't completely understood, but the protective effect is real and documented in long-term users. Hormonal contraceptives suppress ovulation and alter the uterine lining in ways that appear to reduce cancer risk. It's one of those benefits that doesn't get discussed enough in routine counseling.

Inventor

What makes the hormonal IUD different from oral pills for adenomiosis?

Model

The IUD delivers hormone directly into the uterus where the problem is. With adenomiosis, you need local control of that abnormal tissue growth. Oral pills work systemically and haven't shown the same effectiveness. The IUD is simply a better tool for this specific condition.

Inventor

The timing issue with IUD insertion during heavy flow—is that a reason to avoid treating adenomiosis?

Model

Not at all. It just means the doctor needs to be strategic about when to insert it. Schedule it outside the heaviest bleeding days, and the success rate improves. It's a technical detail, but an important one.

Quer a matéria completa? Leia o original em Afya | Home ↗
Fale Conosco FAQ