10 Reasons Natural Menopause Is Not a Castration Event

This claim that menopause is castration comes up repeatedly on social media. The analogy is rhetorically loaded, and while the shock value might be great for the attention economy, the argument is scientifically flawed and not helpful if the goal is education.

I understand that the claim feels truthy because it emphasizes a single shared feature, a change in hormone levels, which makes castration and menopause feel similar when really there are many important and significant physiological differences between the two. Which brings up a classic problem with analogies: they can be illuminating when they highlight relevant similarities, but misleading when they obscure important differences that make the analogy meaningless (as in this case).

As this claim has recently resurfaced and I have been meaning to address it, I have decided now is the time to assemble a list of science-based counterarguments.

One criticism I often receive when addressing misinformation about menopause is that correcting inaccurate claims is somehow equivalent to attacking the person making them. It is not. Scientific and medical claims should be judged on the quality of the evidence supporting them, not on the popularity, intentions, or credentials of the person presenting them. Pointing out that a statement is unsupported, misleading, or factually incorrect is not mudslinging; it is the normal process by which science and medicine advance.

As this claim has recently resurfaced and I have been meaning to address it, I have decided now is the time to assemble a list of science-based counterarguments.

If someone claims that menopause is a castration event, those assertions deserve scrutiny because they influence how people understand their health and the decisions they make about their care. Medicine depends on our willingness to question claims, examine evidence, and revise conclusions when the facts do not support them. Women have been denied this scientific inquiry for too long, and we do not correct that history by replacing old misconceptions with new ones.

1. Ovaries and testicles produce hormones in very different ways, so analogies between the two are about as useful as comparing the spleen to the liver

The ovary is unique among endocrine organs because its hormone production is inseparable from a recurring reproductive cycle. Estradiol rises and falls as follicles grow, ovulation occurs, and the body prepares for the possibility of pregnancy. Testicles, by contrast, are designed for continuous sperm and testosterone production. One system is cyclical, the other continuous. That fundamental difference means the end of ovarian function cannot be understood simply by analogy to the loss of testicular function.

2. Castration has a precise definition that does not map onto natural menopause

Castration refers to the removal, destruction, or complete loss of gonadal function due to surgery, disease, radiation, or injury. Natural menopause is an age-associated cessation of ovarian follicular activity without removal of the organ itself. The distinction is structural, not semantic.

3. Menopause is a physiological life stage; castration is an acquired state

Menopause is a universal, aging process in long-lived women. Castration is an external intervention or pathological loss of function and is not a programmed developmental stage.

4. Menopause is a gradual transition; castration is an acute endocrine disruption

Menopause unfolds over years (perimenopause), with fluctuating estradiol levels, intermittent ovulation, and progressive loss of follicular responsiveness. Castration typically produces an abrupt collapse of testicular hormone production, or estradiol when thinking of castration for women.

5. Ovarian function does not disappear completely after menopause

Postmenopausal ovaries continue to produce androgens such as androstenedione and testosterone. This residual endocrine activity is absent with castration.

6. After menopause, women rely heavily on hormone production inside cells or intracrinology

Tissues such as fat, bone, and muscle convert precursor hormones from the adrenal gland into active estrogens and androgens via intracrine mechanisms, and this continues after menopause ad is biologically important. Male endocrine physiology is more testis-dependent, so loss of gonadal function results in a more dramatic drop in androgens.

7. Muscle effects of menopause and castration are not symmetric

Testosterone is a major anabolic hormone in men; castration or androgen deprivation leads to pronounced reductions in muscle mass, strength, and changes in body composition. Menopause is not associated with an equivalent abrupt anabolic collapse, and for women muscle loss follows a different trajectory influenced by aging, activity, and comorbidities. For more on how muscle mass does not decrease with menopause, read this previous post.

8. If menopause were castration, surgical menopause would be no different

We know that when women have surgical menopause, they often have very severe symptoms related to the abrupt removal of hormones. If menopause were castration, then there would be no difference in the experience with surgical menopause and natural menopause.

9. Women experience menopause, yet still have higher life expectancy than men

Despite undergoing menopause, women live longer than men on average. This demonstrates that menopause is not a global systemic failure of endocrine function and cannot be used as equivalent to castration.

If I wanted to twist facts and go big on the rhetoric for attention, I could start making videos claiming the reason men die before women is they don’t have menopause.

10. Menopause is a transition within an intact feedback system; castration removes the system’s primary output

Menopause occurs within a preserved hypothalamic–pituitary–gonadal axis that continues to function in altered form. Castration removes the gonadal output organ, collapsing the system’s effector arm. With menopause the regulatory architecture remains intact, and with castration it has been physically interrupted.

Bottom Line

Castration is an emotionally loaded term that evokes injury, illness, and loss. It may attract attention and emphasize symptoms, but it is not an accurate medical description of the physiology of natural menopause.

Menopause is a gradual, universal, physiologically programmed transition with residual hormone production, whereas castration is an abrupt, end of testicular function due to an illness or external cause. Equating the two minimizes the biological complexity of menopause and overstates the severity of its hormonal impact relative to the total hormonal elimination of castration. While both are associated with lower hormone levels, they are biologically, endocrinologically, and clinically very different.

I believe we can make the case for appropriate menopause care without resorting to attention-grabbing, reductionist arguments.