Symptoms & complaints
Libido and your blood
A reduced libido is normal and often has several causes: stress, relationship, lifestyle and physical factors. Blood testing can reveal a number of physical, treatable factors.
Which blood values give insight?
In men and women, testosterone can play a role in sexual desire. Thyroid function and an iron deficiency can also have an influence via energy and fatigue. Hormones fluctuate during the day; the time of sampling matters. An abnormal value does not fully explain libido.
When testing is useful
With a persistently reduced libido, especially combined with fatigue or mood symptoms, targeted blood testing can provide direction. Psychological and relational factors often weigh heavily; discuss persistent symptoms with your GP.
Relevant blood values
Frequently asked questions
Which blood values are relevant for libido?
Often relevant are testosterone, thyroid function and iron/ferritin. Which ones are useful depends on your situation and sex.
Does the time of sampling matter?
Yes, for testosterone a morning sample is usual, because the value is highest then and best to assess.
Is a low libido always physical?
No. Psychological, relational and lifestyle factors often play a major role. Blood testing only reveals the physical factors.
Sources
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