Jeannette Oden
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For women, the goal is to avoid supraphysiologic exposure and maintain levels within the normal female range if therapy is used at all (Travison et al., Journal of Clinical Endocrinology & Metabolism, 2017; Davis et al., Journal of Sexual Medicine, 2019). For men, the goal is usually to bring testosterone into the normal range for healthy men and match that to clinical response. However, the wisdom and effectiveness of testosterone treatment to improve sexual function or cognitive function among postmenopausal women is unclear. As surprising as it may be, women can also be bothered by symptoms of testosterone deficiency. All of this reduces the active (free) form of testosterone in the body. In recent years, researchers (and pharmaceutical companies) have focused on the effects of testosterone deficiency, especially among men.
While testosterone therapy can provide significant benefits for men with low testosterone, its implications for fertility and reproductive health demand careful consideration and planning. While TRT offers numerous benefits for men with low testosterone levels, concerns regarding its impact on heart health necessitate a careful and nuanced understanding. This proactive strategy ensures that the benefits of testosterone therapy are maximized, allowing men to improve their quality of life while minimizing potential adverse effects. While testosterone therapy offers significant benefits for men with low testosterone, awareness and management of potential side effects are paramount. Understanding these side effects is crucial for anyone considering or currently undergoing testosterone replacement therapy (TRT).
The thinking is that the dose-response curve for both benefits and risks is not always linear, and that staying at the lower end of that curve might represent a more sustainable tradeoff. These legitimate medical applications are part of why it still exists as an FDA-regulated Schedule III controlled substance. The idea of using a milder dose of a powerful compound to reshape your body without the baggage of a full-blast cycle sounds almost too clean.
Testosterone plays a critical role in maintaining bone density and muscular health, influencing both the strength and physical function of the body. Effective management of the psychological side effects of TRT involves a multi-faceted approach that includes medical, psychological, and lifestyle strategies. Understanding the nuanced impact of testosterone replacement on sperm production, potential reversibility, and alternatives for preserving fertility is essential for men of reproductive age considering or currently undergoing TRT. Testosterone therapy (TRT) presents a paradox in men's health care, particularly concerning fertility and reproductive health. Lifestyle modifications play a significant role in mitigating the side effects of TRT and enhancing overall treatment outcomes.
This study also supports the claim of no elevated risk of VTE in men across the spectrum of endogenous serum T levels. A recent cohort study was conducted to assess the risk of acute nonfatal MI within 90 days following an initial prescription for TRT in a healthcare database of 55,593 US men Finkle et al. 2014. Older men with limited mobility who experienced cardiovascular events had greater increases in serum free T levels compared with control subjects Basaria et al. 2013.
To date, there are no prospective studies that have evaluated the risk of VTE in men receiving exogenous T supplementation. Similarly, a prospective, population-based study of 1350 men aged 50–84 years yielded only 4.5 VTE events per 1000 person-years over 10.4 years of follow up with an insignificant HR of 1.06 (95% CI 0.83–1.35) Svartberg et al. 2009. In June 2014, the US Food and Drug Administration (FDA) called for all T product labels to carry a warning about the potential risk of venous thromboembolism (VTE), despite rigorous evidence to support a link between risk and T supplementation. In men aged 65 years and older, the relative risks (RR) were 2.19 (95% CI 1.27–3.77) for those who received TRT and 1.15 (95% CI 0.83–1.59) for men who received PDE5I. In addition, subject selection was based solely upon T values, rather than in combination with defined clinical symptoms of TD.
But that is a diagnostic threshold, not a universal treatment target. The AUA guideline is often cited because it uses a total testosterone below 300 ng/dL as a reasonable diagnostic cutoff for testosterone deficiency. This is why guidelines talk more about physiologic replacement and appropriate monitoring than about one universal "optimal" number. A man using injections measured at trough will not necessarily show the same lab value as a man using transdermal therapy measured under a different protocol.
Testosterone may stimulate the prostate gland and prostate cancer to grow. The most common example is probably prostate cancer. Some men who have a testosterone deficiency have symptoms or conditions related to their low testosterone that will improve when they take testosterone replacement. Also, as men get older, their livers make more sex hormone binding globulin (SHBG), which binds to testosterone circulating in the bloodstream. In fact, as men age, testosterone levels drop very gradually, about 1% to 2% each year — unlike the relatively rapid drop in estrogen that causes menopause. Women with high testosterone levels, due to either disease or drug use, may experience a decrease in breast size and deepening of the voice, in addition to many of the problems men may have.
Testosterone replacement therapy (TRT) can restore energy, improve mood, and reverse the effects of low testosterone, but it is not without risks. A study published in The Aging Male found that after 12 months of testosterone therapy, the percentage of guys with moderately severe to severe depression symptoms decreased from 17 percent to 2 percent. Testosterone replacement therapy helps raise your low testosterone levels. When you have low T, you might need testosterone therapy to boost your levels and reduce your symptoms. Testosterone is used to treat low testosterone levels caused by certain medical conditions, delayed puberty in males and advanced breast cancer in women. The primary concern with polycythemia is the increased risk of blood clots, which can lead to serious cardiovascular events such as heart attack or stroke.