Endocrine and reproductive health care and
reputable information about hormonal concerns
by endocrinologists

Curated Resources

Expert Opinions

Haere   Mai!

What we do


Host your own 


Want to host an educational menopause event for your friends or co-workers but don’t have the budget for a speaker?
We invite you to coordinate your own “journal club” session using our free menopause articles.

Just released

with our free e-kit

Educatinal Event

Now open 

New Clinic Location

We are delighted to announce the opening of our  new 

Visit our contact page for location details:


In-Person Endocrinologists appointments are now at our new practice with Dr Megan Ogilvie, Dr Sasha Nair and Dr Maritza Farrant .

Appointments with Dr Stella Milsom will be at our new practice from May 2024. 

Dr Susannah O'Sullivan is taking a break from private consulting but continues her educational and academic work with
ERH Associates

(ps: check out our opening day photos on instagram @erhassociatesnz)

Referral EDI: "hormones"

"We were taught about puberty at school, why does no one teach about the other stages of life?"

"Where can I find reputable information about HorMones and HEalth?"

You asked, We answerED.

Evidence-based information about hormones, endocrine issues or reproductive health? 

Here you will find quality information about the hormone-related changes throughout normal life, as well as about endocrine conditions. 

We'll cover topics like PMS, menopause, gender-affirming treatment, variations of sexual development, health in high performance sport, bone health, low testosterone and general endocrine issues such as thyroid conditions.

Do you want to read information that is written by specialists and is easy to understand?

Kia Ora

Are you looking for


Founded by Dr Stella Milsom, our Auckland-based group of endocrinologists has grown to a team of five specialists -Endocrine and Reproductive Health  (ERH) Associates

As a team, we have clinical and research experience in endocrine and reproductive health issues including menopause care, hypothalamic amenorrhoea, variations in sexual development, gender-affirming treatmentn, osteoporosis, PMS, testosterone issues,  thyroid issues and more. 

Not everyone has access to an Endocrine & Reproductive Health Specialist in their area.  Our vision is to grow a collection of online resources on this website and provide more in-depth information in our App to make quality information available to all.

Dr MaritZa Farrant
Dr Susannah O'Sullivan
Dr Stella Milsom
Dr Sasha Nair
Dr Megan ogilvie

 To  Matou Tima



(our team)

Connect with us on social media 


On instagram and our other social media profiles we cover hormone-related topics in bite-sized chunks to raise awareness, stir your thoughts and start conversations about important endocrine and reproductive health issues.  


Let us know how we can make you feel better represented, or request topics you'd like us to cover.


We may not be able to respond to all emails individually but we do read them all. 



Links to guidelines and specialist opinions and summaries on various endocrine conditions.

We are proudly New Zealand-based and aim to provide information relevant to the diverse mix of people here in Aotearoa.

However we also welcome international visitors to use our online resources. Much of our information is universally relevant. 

Normal changes and common endocrine concerns in puberty, reproductive years, mid life and older age.



Menstrual disturbances,  menopause, PCOS, PMS, health in sport and more.

Gender affirming therapy,  Variations in Sexual Development 

Low testosterone,  health during exercise

*assigned at birth

*assigned at birth

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What to expect during menopausE & PERIMENOPAUSE

Managing PMS

staying healthy during High-performance exercise

hormones & the Gender AFfirmation journeY


Our app is in development so that we can bring you exciting new courses including:

ERH Associates App





menopause course

Want to be walked through everything you need to know to be prepared to navigate and thrive in perimenopause and menopause in-depth and in one place?  We are developing an App-based course to do just this! 
Find out more here:

Menopause Course


We offer in-person consults at our Auckland-based offices.

We also offer virtual consults for people throughout New Zealand.*

*Please note you must be in New Zealand at the time of the virtual consult.




  • Menstrual disturbances
  • PCOS (Polycystic Ovary Syndrome)
  • Variations of Sexual Characteristics
  • Gender Affirming Treatment
  • Low testosterone due to calorie deficit in men*

Subscribe to get our free deck of infographic cards about:

Free Printable infographic cards

*assigned at birth


Browse our latest articles.


Public Speaking

book an Endocrinologist for

Live appearance or webinar 

Featured post

Menstrual Disturbances

Knowing about and tracking your menstrual cycle is a powerful tool in monitoring your endocrine and general health.

Read IT

Featured post

Low testosterone in MEN*

Low libido, low energy, and sleepiness during the day can all be symptoms of low testosterone. Causes include high exercise levels without adequate fueling, being overweight, and endocrine disorders.

REAd the post

Featured post

Hormones For Gender Affirmation

The gender affirmation journey is unique to each person.  Read about what is involved when considering hormone therapy as part of your journey.    


*cis or assigned at birth