Symptoms of High Prolactin in Males
Prolactin is a hormone most commonly associated with lactation in women, but it also plays an important role in men’s health. Produced by the pituitary gland, prolactin helps regulate testosterone levels and supports reproductive function.
When prolactin levels become elevated - a condition known as hyperprolactinemia - it can disrupt the hormonal balance and lead to a range of symptoms, some of which may be subtle or mistaken for other health issues.
Read on to learn more about the signs of high prolactin in men and how it can affect overall health and well-being.
What is prolactin and what does it do?
Prolactin is a hormone produced by the pituitary gland, located at the base of the brain. While it’s primarily known for triggering milk production in women, prolactin is one of the key male hormones and plays an important role in male health.
In men, prolactin helps regulate:
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Testosterone production – Prolactin influences the function of the testes and can affect testosterone levels.
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Sperm development – It supports the process of spermatogenesis (sperm production).
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Sexual function – Prolactin is involved in sexual satisfaction and recovery after orgasm.
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Mood and emotional regulation – It interacts with brain chemicals that influence mood and emotional stability.
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Immune system response – Prolactin has been shown to play a role in immune system regulation.
Although research is ongoing, it's clear that prolactin is more than just a reproductive hormone. When levels rise too high, it can disturb hormonal balance and impact several aspects of male health.
Signs of high prolactin in men
When prolactin levels are elevated - a condition known as hyperprolactinemia - it can interfere with the body’s normal hormone function, particularly testosterone. This hormonal imbalance may lead to a range of symptoms, some of which develop gradually and can be overlooked.
Common signs of high prolactin in men include:
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Low libido – A reduced interest in sex is one of the most common symptoms.
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Erectile dysfunction – Difficulty achieving or maintaining an erection may occur as testosterone levels drop.
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Infertility – High prolactin can affect sperm production and quality.
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Breast tenderness or enlargement (gynecomastia) – Some men may notice swelling or sensitivity in breast tissue.
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Reduced muscle mass and strength – Hormonal changes can impact physical performance and body composition.
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Fatigue – Persistent tiredness that doesn’t improve with rest.
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Mood changes – Irritability, low mood or symptoms of depression may develop.
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Headaches or vision problems – In cases where a prolactin-secreting tumour (prolactinoma) is present in the pituitary gland.
Because these symptoms can also be linked to other health conditions, a blood test, such as the Advanced Male Hormone Profile, is the most effective way to check prolactin levels and identify the cause.
What causes high prolactin levels?
High prolactin levels in men can result from several underlying factors. In some cases, the cause may be temporary or linked to lifestyle, while in others, it may be due to a medical condition affecting the pituitary gland.
Common causes of elevated prolactin include:
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Prolactinoma – A non-cancerous tumour on the pituitary gland is one of the most common causes. It can lead to excessive prolactin production and may also cause headaches or vision changes.
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Medications – Certain drugs can raise prolactin levels, including:
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Antidepressants (especially SSRIs)
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Antipsychotics
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High blood pressure medications
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Opioid painkillers
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Low thyroid function (hypothyroidism) – An underactive thyroid can trigger increased prolactin as part of the body’s feedback response.
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Stress – Physical or emotional stress can temporarily raise prolactin levels.
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Chest injury or stimulation – Trauma or irritation around the chest area may signal the body to produce more prolactin.
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Chronic kidney disease – Impaired kidney function can affect hormone clearance from the body, leading to higher levels.
How is high prolactin treated?
For many men, managing high prolactin starts with understanding what’s driving it. In some cases, making simple lifestyle changes can make a real difference - especially if levels are only slightly raised.
Here are some ways high prolactin can be addressed:
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Look at your stress levels – Chronic stress can contribute to raised prolactin. Building in regular downtime, improving sleep quality and trying techniques like mindfulness or gentle exercise can all help reduce stress naturally.
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Get good rest – Hormones rely on consistent, restorative sleep. Aiming for 7 to 9 hours of quality sleep each night supports better overall hormonal balance.
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Review your medication – Some prescribed drugs can increase prolactin. If you're taking regular medication, it's worth discussing with your GP whether it could be playing a part.
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Check your thyroid – An underactive thyroid is a common underlying cause of raised prolactin and may be easily managed with treatment once identified.
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Medical treatment when needed – If prolactin is very high or caused by a benign growth on the pituitary gland (known as a prolactinoma), medication can help bring levels down effectively. Your GP or specialist will guide you through this if needed.
In many cases, a simple blood test can help pinpoint the cause - giving you clarity and a way forward.
When to consider a hormone profile
If you’ve been feeling off but can’t quite put your finger on why, it might be time to look a little deeper. Hormones like prolactin play a behind-the-scenes role in everything from mood and energy to sex drive and fertility - so when they’re out of balance, your body often lets you know.
You might want to consider a hormone check if you’re experiencing:
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Ongoing fatigue that doesn’t improve with rest
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Low libido or changes in sexual function
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Unexplained weight changes or muscle loss
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Mood swings, irritability, or feeling low
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Difficulty sleeping or staying asleep
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Breast tenderness or swelling
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Fertility concerns
A blood test can offer clear insight into your hormone levels, including prolactin, testosterone, thyroid hormones and more. It’s a quick and simple way to understand what’s happening in your body and get guidance on the next steps - whether that’s making lifestyle changes or exploring further support.
Check your hormone levels with the Advanced Male Hormone Profile
If you’re noticing changes in your energy, mood, libido or overall wellbeing, checking your hormone levels can be a helpful first step. The Advanced Male Hormone Profile by Bluecrest Wellness offers a simple way to gain clarity, testing key hormones including prolactin, testosterone, thyroid function, and more.
You’ll get:
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A convenient blood test at a location that suits you
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A clear, easy-to-read results report
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A private 15-minute GP consultation to discuss your results
Whether you’re looking for answers or simply want to take control of your health, this profile provides valuable insights into what’s going on behind the scenes.
Book your Advanced Male Hormone Profile and take the next step towards better hormone health.
BOOK AN ADVANCED MALE HORMONE PROFILE TODAY
