Mounjaro and Male Fertility in London – What Men Need to Know
What Is Mounjaro and Why Are Men Concerned About Fertility?
Mounjaro (tirzepatide) is one of the most talked-about weight loss injections on the market. It’s a GLP-1 and GIP receptor agonist originally developed for diabetes – and now widely used for obesity management.
But questions are emerging about its effects on male reproductive health:
- Does Mounjaro affect sperm count?
- Do I need to stop Mounjaro before trying to conceive?
- Can losing weight with Mounjaro improve fertility?
This article breaks down everything men need to know – especially if you’re considering male fertility testing in Central London.
Mounjaro and Male Fertility – What the Research Says
There is currently limited data on how tirzepatide (Mounjaro) directly affects male fertility. Most clinical studies have focused on weight loss and diabetes outcomes – not reproductive health.
However, we do know:
- GLP-1 receptors exist in the male reproductive tract, but their function is not fully understood.
- Some anecdotal reports suggest reduced libido or low testosterone – but more research is needed.
- Like other GLP-1 medications, weight loss may itself improve male fertility, even if the medication plays no direct role.
No official guidance currently recommends stopping Mounjaro before trying to conceive – but personalised hormone and fertility testing is advised.
How Obesity Affects Male Fertility – Why Weight Loss Matters
Before we worry about Mounjaro, let’s consider why weight loss itself is often helpful for men trying to conceive.
Obesity is known to:
- Reduce testosterone levels
- Increase oestrogen levels in men
- Disrupt FSH and LH – key hormones for sperm production
- Impair sperm motility and DNA integrity
- Trigger systemic inflammation, which damages sperm cells
In short, losing weight helps your hormones rebalance and improves semen quality – whether it’s done through diet, exercise, or medication.
Should You Test Fertility While Using Mounjaro?
Absolutely – especially if:
- You’ve been on Mounjaro for 3+ months
- You’re planning to start a family within the next year
- You’ve experienced changes in libido or energy
- You’ve been trying to conceive for 6+ months without success
At Marylebone Diagnostic Centre, we offer specialist male fertility testing in London tailored to men using GLP-1 medications.
Our Recommended Male Fertility Tests
Comprehensive Fertility Profile – £674
- Semen Analysis (with sperm photos)
- DNA Fragmentation (24h turnaround)
- Male Hormone Panel:
FSH, LH, Testosterone, Free Testosterone, Prolactin, SHBG, Albumin, PSA - Perfect if trying for 6–12 months or after pregnancy loss
Advanced Care Profile – £932
- Includes all above, plus:
- Mineral Hair Analysis (zinc, selenium, magnesium, toxic metals)
- Designed for recurrent IVF failure, low sperm count, or hormone imbalance
Available from our discreet clinic near Baker Street, Harley Street, and Paddington
Common Questions About Mounjaro and Fertility
Why Choose Us?
- Trusted by men across Marylebone, Mayfair, Chelsea, Westminster, Kings Cross
- Fast results – semen and hormone testing within 24 hours
- Personalised advice from male hormone and fertility specialists
- Same-day bookings, no GP referral needed
- Boutique, discreet care in a calm Central London setting
Book Your Mounjaro Fertility Check Today
We’re here to give you answers.
Don’t wait or guess – get tested.
73 Baker Street, London W1U 8ED
+44 7495 970109
Book Now
Additional Tests:
- Male Fertility Testing in London
- Advanced Care Fertility Profile
- Hormone Blood Test for Men
- Mineral Hair Analysis
