Advanced Maternal Age and Egg Quality: A Guide Before Mexico Surrogacy

In recent years, as people continue to delay marriage and parenthood, more women have started seriously planning for fertility after the age of 35. For those considering Mexico surrogacy, although the pregnancy will ultimately be carried by a surrogate, embryo quality remains closely linked to the quality of their own eggs.

Why Egg Quality Matters

In assisted reproduction, eggs are the foundation of embryo development. As women age, both the number and quality of eggs gradually decline, while the risk of chromosomal abnormalities increases.

In general, ovarian reserve begins to decline more noticeably after age 35, with the rate of decline accelerating after age 40. This can affect not only the number of eggs retrieved but also embryo development potential, implantation rates, and overall pregnancy outcomes.

How to Evaluate Ovarian Function

Many people assume that regular menstrual cycles automatically indicate normal ovarian function, but this is not always the case.

The most common methods used to assess ovarian reserve include AMH testing, antral follicle count evaluation, and hormone testing.

AMH reflects the remaining follicle reserve within the ovaries and is one of the most widely used indicators today.

Antral follicle count is performed through ultrasound examination to determine the number of visible follicles in the ovaries, helping physicians evaluate how the ovaries may respond to stimulation treatment.

At the same time, hormone markers such as FSH, LH, and estrogen can provide additional information about ovarian function.

It is important to understand that there is no single universal standard for ovarian reserve assessment. Even a low AMH level does not necessarily mean fertility opportunities are lost. Physicians typically evaluate age, test results, and reproductive history together before making recommendations.

How Older Women Can Improve Egg Quality

The first step is maintaining a consistent daily routine.

Chronic sleep deprivation can disrupt endocrine function and interfere with follicle development. Adequate sleep helps support normal hormone production.

The second step is maintaining a healthy weight.

Both overweight and underweight conditions may negatively affect ovulation and ovarian function. Balanced nutrition and regular physical activity can improve metabolic health and create a more stable environment for egg development.

From a dietary perspective, increasing the intake of high-quality protein, fresh fruits and vegetables, and antioxidant-rich foods may be beneficial. Antioxidants help reduce the impact of free radicals on egg cells.

In addition, avoiding smoking, limiting alcohol consumption, and reducing long-term stress are all considered important for maintaining reproductive health.

How Early Should Preparation Begin?

For individuals planning to enter an assisted reproductive cycle, it is generally recommended to begin health optimization three to six months in advance.

This is because follicles require several months to develop from early recruitment stages to final maturation. Lifestyle adjustments and comprehensive fertility evaluations during this period may help improve conditions before egg retrieval.

If diminished ovarian reserve or hormonal imbalances are identified, there is also more time available for appropriate intervention and treatment planning. A clearer understanding of one's reproductive health often makes it easier to develop a personalized fertility strategy.

Power Fertility Clinic is a licensed reproductive medical center in Mexico that follows U.S. FDA standards and is directly managed by American fertility specialists. Located in the heart of Mexico City, the clinic is just 500 meters from the U.S. Embassy. Power IVF offers comprehensive fertility services, including egg donation, sperm donation, and third-party reproduction, while supporting U.S. IVF and U.S. egg freezing technologies to provide efficient fertility options for intended parents. The clinic features advanced laboratories and an experienced medical team specializing in IVF-PGT (PGT-A) and embryo screening. In Mexico, IVF treatment and gender selection are legally available to single individuals, married couples, and LGBTQ patients. Regulations also permit the international transport of frozen sperm, eggs, and embryos. Power IVF is licensed to receive cryopreserved reproductive tissues from overseas, helping patients build personalized fertility pathways.