
1-minute summary:
- El egg freezing (vitrification) preserve your fertility for the future (outpatient procedure).
- Ovarian stimulation ~10–12 days; retrieval 15–30 minutes with sedation; rapid recovery.
- Age at freezing and number of mature eggs determine future success.
- In oncofertility, preserve before chemo/radiotherapy whenever possible.
- Costa Rica records a historic low in fertility: deciding in time is key.
What is egg freezing (vitrification)?
La vitrification Ultra-rapid freezing of mature oocytes to preserve their reproductive potential at the age at which they are frozen. This is a safe, outpatient procedure performed in clinics with a specialized laboratory.
For whom and when is it appropriate?
• Oncofertility: preserve before oncological treatment if clinical time allows.
• Elective (social): If you want to postpone motherhood for studies, a career, or a life plan. The younger you are when you freeze your baby, the better the prognosis.
What is the process? (step by step)
- Initial assessment: medical history, hormones and ultrasound.
- Ovarian stimulation (10–12 days): injections and ultrasound monitoring.
- Follicular puncture (15–30 min): extraction under sedation.
- Vitrification and protection: safe storage. Most resume activities within 24–48 hours.
How many eggs should be frozen?
The recommended amount varies depending on the age at the time of freezing and the number of mature oocytes available. For example, some clinical models (such as Goldman 2017) estimate the probability of achieving at least one live birth by combining age and number of eggs. Ultimately, the goal is defined on an individual basis after assessing ovarian reserve.
Oncofertility: preserve before treating
According to clinical guidelines (ASCO 2025), it is recommended to offer preservation (eggs or embryos) without delaying the start of treatment. In addition, in certain cases in vitro maturation (IVM) may be considered. Azul Fertility, therefore, we coordinate fast-track oncology and provide financial support options.
Trends and context (Costa Rica and the world)



- The age at which first child is born increases and motherhood is postponed.
- Growing adoption of fertility benefits (egg freezing and IVF) in companies.
- The fertility rate in Costa Rica dropped to 1,19 children per woman (INEC 2023).
Why choose Azul Fertility Experts?
- Accredited laboratory and processes aligned with international standards (ASRM, RedLara).
- Bilingual team and experience with local and international patients.
- Cutting-edge technology + human support at every stage.
- Customized protocols based on your ovarian reserve and reproductive plan.
Next steps: Schedule your consultation at Azul Fertility Experts
Frequently asked questions (FAQ)
| At what age is it best to freeze eggs? | Ideally, it's recommended to freeze your eggs in your twenties or early thirties. In fact, age directly impacts egg quality and the chances of success. |
| Does the procedure hurt? | Mild discomfort during stimulation; extraction is performed under sedation and is usually well tolerated. |
| How long does the whole process take? | 2–3 weeks from the first consultation; stimulation lasts 10–12 days. |
| Does it guarantee pregnancy in the future? | No. It increases the odds by preserving the egg's potential at the freezing stage, but it does not guarantee the outcome. |
| How many eggs should I freeze? | It depends on age and ovarian reserve; the goal is defined in consultation, supported by validated probability models. |
| Is there support for cancer patients? | Yes. Priority coordination and financial benefits for cancer patients. |
