IGF-1 – what do your levels mean?
Have you had your IGF-1 level measured and are unsure what the numbers mean? Here's a clear explanation of the normal range, what too high or too low levels can signify, and when it makes sense to get tested.
What is the normal range for IGF-1?
What is the normal range for IGF-1?
The normal range for IGF-1 varies depending on age, gender, and the laboratory's analysis methods. For women, for example, reference values are between 10-205 µg/L for children under 2 years old and up to 135-500 µg/L for adults over 26 years old. For men, the values are slightly different, with a range of 30-160 µg/L for children under 2 years old and 135-500 µg/L for adults over 26 years old. Levels are highest during puberty and lowest in childhood and old age. Being close to the limit values can indicate a possible hormonal imbalance that should be assessed by a specialist.
What does a low level mean?
A low level of IGF-1 can indicate growth hormone deficiency, which can be genetic or acquired. Symptoms include reduced growth in children, fatigue, decreased muscle mass, and increased fat mass in adults. Causes can include hypopituitarism, malnutrition, or chronic diseases such as liver cirrhosis. Particularly vulnerable groups include individuals with genetic disorders such as Laron syndrome. If low IGF-1 is suspected, a doctor should be contacted for further examination and possible treatment.
What does a high level mean?
An elevated level of IGF-1 can be a sign of conditions such as acromegaly in adults or gigantism in children, often caused by a benign tumor in the pituitary gland. Symptoms can include abnormal growth of hands, feet, and face, as well as joint pain. Other causes can be kidney diseases, obesity, or growth hormone treatment. It is important to consult a doctor if high IGF-1 is suspected, as early diagnosis can prevent complications. A specialist can perform further tests and recommend appropriate treatment.
Get your IGF-1 level tested
At Celto, you can order an IGF-1 blood test directly online – without a referral from your doctor and without long waiting times. We have over 34 sample collection sites at public hospitals across Denmark, and your samples are analyzed in the same accredited laboratories used by the rest of the healthcare system. You receive your results directly on sundhed.dk, just like all other blood tests from the public system.
How it works
When you order a blood test from Celto, you choose which markers you want tested – no doctor's referral needed. After your purchase, you will receive an email with a link to our booking system, where you choose a time and location. The blood sample itself is taken by authorized healthcare personnel and typically only takes a few minutes.
Where you can get tested
Celto has over 34 sample collection sites at public hospitals and clinics across Denmark. You choose the location that suits you best among our partners, and there are usually available appointments within a few days. Find your nearest sample collection site →
How to get your results
Your blood samples are analyzed in the same laboratories used by your own doctor and the rest of the healthcare system, with exactly the same quality and the same tests. You receive your results directly on sundhed.dk within a few working days, and Celto also sends an easy-to-understand review of your values so you know what the numbers mean.