When a “late bloomer” does not bloom
I did not start puberty on time and was labelled as a “late bloomer”.
By the age of 15, I still had not started puberty.
An examination by a school nurse resulted in a trip to the local doctor. He just said I was a “late bloomer” and I should just “wait and see”
No blood tests, no other physical examination.
At the age of 18 I saw two hospital consultants, a urologist and a general medicine consultant but the answer came back the same.
No doctor I spoke to picked up on the fact I also had poor hearing and no sense of smell.
I did not know it at the time but both these symptoms were linked to my lack of puberty.
I went to University to study biomedical sciences. I still had not started puberty.
I started work in the my first real job as a Biomedical Scientist at the Royal Free Hospital in London. A chance lunch time meeting with an endocrinologist (Dr Richard Quinton) working there changed everything.
After I first described my symptoms, he asked if I had a sense of smell. That one question led to my diagnosis of Kallmann syndrome.
I have been on testosterone therapy every since. I have to be on some form of hormone replacement. I still did not go through normal puberty but at least got most of the physical changes that should have happened. I would have to take a different form of treatment should I wish to be fertile.
Diagnosis of delayed puberty. - not always a case of “wait and see”.
Some points that were mentioned at the talks I went to at the conference on delayed puberty and Kallmann syndrome / CHH.
About 80% of males who have delayed puberty at the age of 14 will progress to normal puberty with no treatment or a short course of treatment.
30 - 55% of females who have delayed puberty at the age of 13 will progress to normal puberty.
Treatment is not normally required before the age of 13, however treatment need not be with held until a full diagnosis is obtained. Better outcomes both physically and emotionally can be obtained with earlier treatment.
Commencement of puberty (past Tanner stage 2) does not always mean puberty will complete fully in cases other than standard self limiting delayed puberty.
In females treatment with oestrogen only is suggested until maximum uterine growth is obtained (shown by 2 consecutive ultrasound scans). Progesterone should only be added later.
In males with Kallmann syndrome / CHH whose testicle volume is low (2 ml by ultrasound) should not be given hCG on its own when a teenager or young adult as this can reduce the chances of fertility treatment working later in life.
Treatment with testosterone only at any age has no effect (positive or negative) on future fertility chances.
Early use of gonadotropin therapy / fertility treatment in teenagers does not increase the chances of fertility chances working later in life but can reduce the time required to achieve sperm production.
The Kisspeptin challenge test could be a good diagnostic test to distinguish between self limiting delayed puberty and Kallmann syndrome / CHH. It is still only available as a research test but it is hoped that it will be available more widely at some stage.
Inhibin-B is a hormone that is released early in puberty and can be detected during childhood before the age puberty is due. While not always available in all hospital labs, measuring Inhibin-B levels could indicate puberty is starting years before any physical signs can be seen.
Having Kallmann syndrome is not the same as being a "late bloomer"
Being a late bloomer can be difficult enough for people, there can be a feeling of being left behind both emotional and physically.
Patients with Kallmann syndrome / hypogonadotropic hypogonadism can sometimes be labelled as “late bloomers” even when other symptoms are present.
This can delay diagnosis and treatment which can affect patients both physically and emotionally.
Kallmann syndrome - AI generated text.
Kallmann syndrome is a rare genetic disorder that is characterized by delayed or incomplete puberty along with an impaired sense of smell. This condition is caused by a deficiency in the production of certain hormones that are crucial for both puberty and the sense of smell. Individuals with Kallmann syndrome may also experience infertility due to these hormonal imbalances. Treatment typically involves hormone replacement therapy to induce puberty and address any related symptoms. Early diagnosis and appropriate management are essential in helping individuals with Kallmann syndrome lead healthy and fulfilling lives.
A good attempt by AI but some points I would like to add as a patient with Kallmann syndrome.
Hormones do not affect the sense of smell. The lack of sense of smell comes from the nerves controlling the sense of smell not being in the correct location within the olfactory bulb (“smell centre”) of the brain.
Patients with Kallmann syndrome are most likely to be infertile due to lack of gonadotropins (FSH / LH) produced by the pituitary gland. A small minority of patients with partial or incomplete Kallmann syndrome will have a low level of sperm / egg production & fertility.
Patients with Kallmann syndrome do not experience normal puberty even when on treatment. Standard hormone replacement therapy (testosterone or progesterone / oestrogen) will produce most of the secondary physical characteristics normally seen at puberty but will not induce fertility in either male or female patients.
Survey for male KS / CHH patients on fertility treatments.
A team of endocrinologists at Imperial College in the UK are planning a large study to look at fertility treatments for male KS / CHH patients in order to establish best practice guidelines.
As part of this study they have created this short survey for any KS / CHH to complete to pass on their experiences and opinions on fertility treatments. They want to know the issues and questions male KS / CHH patients have on fertility treatments.
No medical information or personal information is required, they just want to hear patient views and opinions on fertility treatments to help them plan the full study. All male patients can take the survey, regardless if they have had treatment or not, or where they live.
2nd IamHH Patient Group Meeting.
Patient Group Meeting.
IamHH is an officially recognised patient support group for Kallmann syndrome / congential hypogonadtropic patients.
The 2nd patient group meeting is planned for Dallas, Texas on 21st October 2023.
The meeting will mainly be a social event but will include on line contributions from medical experts with presentations and and Q&A sessions.
For more information and registration form please e-mail:
info@iamhh.org
Talking about Kallmann syndrome to others.
I do not mind talking about my condition to anybody who is willing to listen. I would not go far as to say I enjoy talking about the condition but I do appreciate the chance of trying to raise awareness of the condition.
I do like the "first patient" conversations, where I am the first fellow patient somebody has ever talked to. These conversations can last for hours and often will cover the same questions. I am happy to talk about my experiences with the condition, both positive and negative, if it helps a fellow patient learn more about the condition.
It is the psychological / emotional side of having Kallmann syndrome / CHH which creates the more intense conversations. I have not handled the emotional and physical relationship side of having the condition well. I am happy to talk about my experiences, it might help others not make the same mistakes.
Due to the personal / intimate nature of the condition it is not an easy one to discuss with anybody sometimes, even fellow patients. I tend to be as open as possible, even to the point of over sharing perhaps but I do think it can help some patients to be able to talk other patients who understand the condition.
As with any rare disorder it is perhaps only fellow patients who understand what it is like to have the condition. Puberty is such a natural process normally it can be difficult for others to appreciate what it is like not to go through it correctly or fully.
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Kallmann syndrome on line survey request.
Survey request from a KS patient undertaking undergraduate Psychology degree in the UK.
I am conducting research for my dissertation as an undergraduate student at Wrexham Glyndŵr University. The purpose of research is to explore Gender expression for Male individuals with Kallmann Syndrome. Previous research has neglected to specifically explore how gender is expressed for individuals with KS. This participation will take 45 minutes to complete.
We want to collect data from males over the age of 18 who have an official Kallmann Syndrome diagnosis. An individual’s self-reported treatment status (Treated/Intermittent/Untreated). We ask those who have previously experienced dysphoria surrounding gender or personal experiences related to gender which may be distressing to not take part in the research. Ethical approval for this study was granted by the Wrexham Glyndŵr University Psychology Department Research Ethics sub-committee on 14/02/2023
Link Below
You can access the surveys via this link: https://wgu.onlinesurveys.ac.uk/exploring-gender-roles...
If you would like more information, please direct any questions to Stuart Harkin via email at S17002247@mail.glyndwr.ac.uk
My initial Kallmann syndrome diagnosis.
There is one day in my life I wish I had more memory of, or at least understood the consequences of that day at the time.
The day I got my Kallmann Syndrome diagnosis in 1992.
I studied an endocrinology unit while at University for my biomedical science degreee and had tried to find more information on disorders of puberty, but this was pre internet days and you had to physically find information for yourself in real books.
I started work at a hospital in London as a biomedical scientist, working in a blood transfusion lab. I knew I had an endocrine condition so one day I went up to the endocrine department to find somebody to talk to. No appointment, just one lunch time, knocked on a door.
I wish I could remember the exact details but it involved me telling this endocrine doctor my situation. The first question he asked was "did I have a sense of smell ?".
23 years of age, no doctor had asked me that before. To be fair I perhaps had not thought of telling a doctor either since it was something I rarely thought about.
That doctor was Dr Richard Quinton. At the time senior registrar to Prof Pierre Bouloux. I just happened to start work in the one hospital in the UK that had two KS specialist doctors working there. Dr Quinton had done his MD thesis at Cambridge University on Kallmann syndrome.
This led on to the formal diagnosis and treatment and more importantly perhaps, meeting my first ever fellow patient (that I knew of at least).
I perhaps could not have been at better hospital to get diagnosed for a rare endocrine condition. Getting on to 30 years later I am still in contact with Dr Quinton.
What is Kallmann syndrome ? The very basics.....
Kallmann syndrome (KS) is a form of a condition known as hypogonadotropic hypogonadism (HH). HH is a condition that causes a disruption to the normal production of hormones that control puberty and fertility.
Kallmann syndrome is a specific form of HH where the sense of smell is affected as well. People with KS will have no sense of smell or a very limited sense of smell from birth.
Apart from the sense of smell, KS is the same condition as HH.
HH is normally present from birth, where puberty is affected, or it can occur after a normal puberty when it affects fertility.
If present from birth puberty will not start correctly or fully complete. Some pubertal development will occur but not progress as normal.
The majority of people with KS / HH will be infertile.
KS / HH occurs in both males and females but is more commonly diagnosed in males.
KS / HH can occur with one or more, or none of these additional physical symptoms:
· Hearing problems
· Mirror movements of the hands
· Cleft lip / palate
· Missing teeth
· Fused fingers or toes
· Scoliosis
· Missing kidney
· Undescended testicles
Diagnosis is normally achieved by excluding other conditions that can affect puberty and fertility. There is no one single blood or genetic test that can firmly diagnose KS / HH.
Patients are sometimes labelled as "late bloomers" or "late developers" and can wait many years before receiving the correct diagnosis.
Hormone replacement therapy can produce most of the changes normally seen at puberty but will not induce fertility. Hormone replacement therapy, to replace the testosterone or oestrogen / progesterone hormones that are not being produced, is normally required lifelong.
Specialised treatments are available to help achieve fertility for both male and female patients but can be expensive and not always easy to acquire.
The genetics of KS / HH is complex and far from being totally understood. Genetic testing can help in some cases but does not always provide clear cut answers on the chances of passing on the condition.
Ovitrelle injection.
Since Pregnyl is no longer available in a lot of places I have had to switch to a different form of hCG injection.
The Ovitrelle pen is designed for female use and at 6,500 IU it is normally too high a dose for single use for males. The dose can be adjusted via the dial “clicks” to get the required dose.
The dose will be set by a health care professional depending on the testosterone level response.
hCG = human chorionic gonadotropin.
hCG is a natural hormone that mimics the activity of luteinising hormone (LH) which normally makes the testicles produce natural testosterone. LH is one of the two pituitary derived hormones that is missing in Kallmann syndrome / CHH patients.
Types of treatment for Kallmann syndrome / CHH.
Treatment for Kallmann syndrome / CHH can fall into two different types:
Hormone replacement therapy (HRT)
or
Fertility treatment - known as gonadotropin therapy.
Over the years I have been on many forms of HRT and have undertaken fertility treatment as part of clinical trials
Some treatment methods will not be available in every country.
Some treatment methods may work better than others depending on the individual and it may take some discussion with the health care professional to find the method and dose that works best.
How is Kallmann syndrome / CHH diagnosed ?
There is no gold standard single test for Kallmann syndrome / congenital hypogonadotropic hypogonadism (CHH).
Diagnosis is often made by excluding other possible conditions that could affect puberty or fertility
Standard blood tests would include:
Testosterone or oestrogen / progesterone
LH
FSH
Prolactin
SHBG
Vitamin D
Other tests could include:
MRI to examine the size and structure of the pituitary gland and check to see if olfactory bulb is present.
Smell identication test.
Wrist x-ray to determine bone age.
DEXA / DXA bone density scan.
Hearing test.
Neurological exam to check reflexes.
Genetic testing may be undertaken whch can help in some cases, especially if there is a family history of the condition but not all cases of Kallmann syndrome / CHH can be identified through genetics.
What are the major symptoms of Kallmann syndrome ?
The defining symptom of Kallmann syndrome is a lack of sense of smell (anosmia) or a reduced sense of smell.
The condition can also occur with a normal sense of smell when the condition is called hypogonadotropic hypogonadism (HH).
There are other additional symptoms that may or may not occur. Kallmann syndrome or HH show a range of symptoms and patients may not experience any of them or only one them.
Possible additional symptoms:
Hearing loss
Cleft lip / palate
Fused fingers / toes
Missing teeth
Curvature of the back (scoliosis)
Mirror movements of the hands
Missing kidney
