Fertility does not depend on a single organ or one isolated factor. It is the result of a balance between different body systems working together in a coordinated way.
In many cases, the body sends signals that something is not functioning optimally. However, these signs are often normalized or minimized due to lack of information or because they are assumed to be “just part of normal life.”
Learning how to interpret these signs not only helps improve overall health, but can also be key to protecting and optimizing fertility—especially when pregnancy does not occur.
Polycystic ovary syndrome (PCOS) and metabolism
Polycystic ovary syndrome (PCOS) is one of the most common causes of endocrine-related infertility, mainly due to its impact on ovulation.
It is important to understand that PCOS is not a problem limited only to the ovaries, but rather a hormonal and metabolic imbalance that, in many cases, is associated with insulin resistance.
Overweight and obesity associated with PCOS can interfere with the hormonal mechanisms that regulate ovulation, reducing pregnancy rates both in natural conception and in assisted reproductive treatments.
In addition, the risk of miscarriage is higher in these cases.
Endometriosis: more than just painful periods
Endometriosis is a chronic inflammatory condition that occurs when tissue similar to the endometrium grows outside the uterus.
Despite its impact on quality of life, diagnosis is often delayed for years, partly because severe menstrual pain has been socially normalized.
Persistent pelvic inflammation and the possible development of adhesions can affect egg quality, fallopian tube patency, and embryo implantation.
Early detection of endometriosis allows for the design of fertility preservation strategies or in vitro fertilization (IVF) treatments tailored to each individual situation.
The thyroid and its role in fertility
The thyroid gland regulates the metabolism of nearly all the body’s cells, including those involved in reproduction. When its function is altered, it can become a silent cause of infertility or early pregnancy loss.
Both hypothyroidism and hyperthyroidism can affect follicular maturation and the uterus’s ability to sustain a pregnancy in its early weeks. In addition, thyroid disorders can increase prolactin levels, creating a combined effect that makes conception more difficult.
Fertility is not only a matter of eggs or sperm, but of overall health. An irregular cycle, severe pain, or a metabolic imbalance are signs that the body may be prioritizing other functions over reproduction.
For this reason, evaluating each case individually and correcting hormonal or metabolic imbalances before starting treatment can improve the chances of success and help begin the journey toward pregnancy in the best possible state of health.
