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Hypoactive sexual desire disorder, or HSDD, is a lasting reduction in sexual desire, or its absence, that causes the person distress. Low desire on its own is common and is not a disorder. What defines HSDD is that the change has continued and that it troubles the individual who has it.
The distinguishing feature is distress, not a level of desire. International consensus recommendations followed in Canadian practice describe HSDD as a persistent reduction in or absence of desire that causes the person personal distress. Many people notice desire changing over the years and are not troubled by it, and for them there is nothing to diagnose or treat.
It is also not a character trait, a relationship failing, or something that only happens at one stage of life. It is a recognised clinical condition that can begin at any point in adult life. And it is not diagnosed when the change is fully explained by something else, such as an ongoing relationship conflict, a medication, or another medical condition, because in that case the other cause is what gets addressed.
How this shows up varies between people. For some the change applies to every situation, and for others only to some, which is one of the things a clinician asks about.

Some things cannot be changed:
Others can often be worked on, usually with support from a health care team:
There is no blood test for HSDD. International consensus recommendations followed in Canadian practice describe it as a clinical diagnosis based on a focused sexual and medical history: when the change began, how long it has lasted, whether it applies to all situations or only some, and how distressing it is. A physical examination is done only when the history points to a physical cause. Clinicians also go through medications, mood, sleep, pain during sex and relationship context before reaching a conclusion, because any of those can account for the change on its own.
Care is usually built around what the history points to, and often addresses more than one contributing factor at a time. Depending on your situation and what matters to you, a health care team may discuss:
Which of the prescription options are available for sale in Canada is worth confirming with a clinician or pharmacist, because that has not been established on this page. What suits one person will not suit another, and whether any of this applies to you is a decision for you and your own clinician. This page is not a recommendation about any of it.
There is still no biological marker for HSDD, no agreement on the best way to measure distress, and limited evidence on how the condition presents across different ages, cultures and gender identities. Canada has no population-level data on how many people meet the criteria or receive care, which makes planning services difficult. The Canadian figure on this page measures low desire rather than the diagnosis, covers only adults aged 40 to 59, and dates from 2018; one recent systematic review noted that HSDD was not reported as a distinct measure in any of its included studies, which is part of why international estimates range so widely. Research now under way includes trials of centrally acting compounds, studies of psychological and mindfulness-based therapies delivered in person and online, work on testosterone in postmenopausal women, and studies of desire in people affected by cancer treatment and by surgical menopause.
Clinical studies are how those questions get answered. Taking part is voluntary, you give informed consent before anything begins, and you can stop at any time without affecting the care you get from your own doctor. Joining a study does not mean giving up your current treatment, and no one can tell in advance whether a study will help you personally.
This page is written in plain language for people considering clinical research. It is general health information, not medical advice, and it does not replace a conversation with your own doctor or nurse practitioner.
No. Low desire is common and many people are not troubled by it. International consensus recommendations describe HSDD as a persistent reduction in or absence of desire that causes the person distress, so distress is what separates the diagnosis from a normal variation.
A national survey of 2,400 Canadians aged 40 to 59 found that 40% of women reported low desire over the previous six months. No Canadian figure exists for HSDD as a diagnosis, meaning low desire plus distress, and no Canadian data covers adults under 40 or over 59. International estimates range from 6% to 32% depending on the definition used.
It is a clinical diagnosis made from a focused history rather than a laboratory test. Clinicians review when the change began, whether it applies to all situations or only some, how distressing it is, and whether medications, mood, sleep, pain or relationship factors are contributing. Physical examination is used only when the history suggests it is needed.
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