Luteinising Hormone
Private Luteinising Hormone blood test in London for £58, measuring one reproductive hormone marker with results in around 1 business day.
Turnaround time
1 business day
Biomarkers count
1
Book your test
Choose Service Type
Professional phlebotomist comes to you
+ £{{ home_visit_fee }}
Visit our clinic for your test
{{ clinic_visit_fee > 0 ? '+ £' + clinic_visit_fee : 'Free' }}
Home Visit Details
Home visits require at least 24 hours notice.
Select a clinic: Sorting by distance…
{{ clinicAddress(clinic) }}
{{ clinicAddress(selectedClinic) }}
Select a date
Select an hour
Available time slots: {{ timeSlots.length}}
Overview of the Luteinising Hormone
The Luteinising Hormone blood test measures LH, a reproductive hormone produced by the anterior pituitary gland.
The test contains 1 biomarker: Luteinising Hormone.
LH forms part of the hypothalamic-pituitary-gonadal axis and works closely with Follicle Stimulating Hormone, or FSH.
In women, LH helps regulate ovarian function and plays a central role in ovulation.
During the middle of a typical menstrual cycle, a rapid LH surge triggers release of the mature egg from the ovary.
After ovulation, LH helps support the corpus luteum and subsequent Progesterone production.
LH concentrations therefore vary substantially according to menstrual-cycle phase.
In men, LH acts on the Leydig cells within the testes and stimulates Testosterone production.
The result can therefore provide information about communication between the pituitary gland and the ovaries or testes.
A raised LH result can be physiologically normal at certain points, such as during the mid-cycle ovulatory surge or after menopause.
Persistently raised LH outside these circumstances can occur when the ovaries or testes are not responding adequately to pituitary stimulation.
A low or inappropriately normal LH result can occur when hypothalamic or pituitary signalling is suppressed.
LH testing is frequently interpreted alongside FSH, Oestradiol, Testosterone, Prolactin and other reproductive hormones.
One LH measurement is not sufficient by itself to diagnose polycystic ovary syndrome, infertility, menopause or a pituitary disorder.
What Does the Luteinising Hormone Test Check?
This test measures 1 biomarker.
Luteinising Hormone
Measures LH produced by the pituitary gland, providing information about ovulation, gonadal function and reproductive hormonal signalling.
Who May Benefit From the Luteinising Hormone Test?
LH testing may be useful during fertility, menstrual, testosterone and pituitary hormone assessment.
Women undergoing fertility investigation - LH forms part of the hormonal pathway controlling ovulation.
Women with irregular menstrual cycles - Abnormal reproductive hormone signalling can contribute to cycle irregularity.
Women with absent periods - LH and FSH can help distinguish between ovarian and central hormonal causes of amenorrhoea.
Women undergoing PCOS assessment - LH can be measured as part of the endocrine evaluation, although the LH/FSH ratio is not diagnostic by itself.
Women being assessed for menopause or ovarian insufficiency - Persistently raised gonadotrophins can occur when ovarian function declines.
Men with low Testosterone - LH helps determine whether reduced Testosterone may arise primarily from the testes or from pituitary/hypothalamic signalling.
Men with fertility concerns - LH contributes to testicular endocrine function and can be considered alongside FSH and Testosterone.
People with suspected pituitary disease - LH is one of several hormones used to evaluate anterior pituitary function.
Adolescents undergoing investigation of delayed or unusually early puberty - LH can provide information about activation of the reproductive hormone axis.
People with a previous abnormal LH result - Repeat testing under appropriate timing conditions can help clarify the pattern.
How to Prepare
Do not stop hormonal contraception, HRT or fertility medication solely to obtain a different LH result unless your treating clinician has specifically requested this.
For women with menstrual cycles, cycle day is essential context for interpretation.
Symptoms and Reasons to Consider the Luteinising Hormone Test
Symptoms depend on sex, age and whether the underlying issue involves the ovaries, testes, pituitary gland or hypothalamus.
Irregular menstrual periods - Disrupted ovulation or reproductive hormone signalling can alter cycle regularity.
Absent menstrual periods - Amenorrhoea may result from ovarian failure, hypothalamic suppression, pituitary disease or other endocrine causes.
Difficulty conceiving - LH can form part of fertility assessment where ovulation or gonadal function is being investigated.
Symptoms suggesting ovulation problems - Cycle irregularity or absent ovulation can warrant broader reproductive hormone testing.
Hot flushes or other menopausal symptoms - LH commonly rises after menopause but should usually be interpreted with FSH and Oestradiol.
Reduced libido in men with possible low Testosterone - LH can help determine whether low Testosterone has a primary testicular or central origin.
Reduced facial or body hair with low Testosterone - Gonadotrophin testing may contribute to assessment of hypogonadism.
Delayed puberty - LH can provide information about whether the hypothalamic-pituitary-gonadal axis has activated appropriately.
A previous abnormal Testosterone, FSH or Oestradiol result - LH can provide important complementary endocrine information.
These symptoms are not specific to an abnormal LH concentration.
Fertility and reproductive symptoms usually require interpretation of several hormones together rather than relying on LH alone.
How to Book Your Luteinising Hormone Test
Booking your Luteinising Hormone blood test with London Blood Tests is straightforward.
Choose the Luteinising Hormone
Select the individual LH blood test.
Select your sample collection option
Choose an in-clinic blood draw or professional home or hotel phlebotomy.
Attend your appointment
A trained healthcare professional collects the venous blood sample at the clinically appropriate cycle time where relevant.
Laboratory analysis
Your serum is analysed for Luteinising Hormone concentration.
Receive your results securely
Your authorised LH result is delivered securely and can be reviewed alongside other reproductive hormones.
When Will I Receive My Results?
The expected turnaround time for the Luteinising Hormone test is approximately 1 business day after your sample reaches the laboratory.
LH is a routinely processed endocrine marker and can generally be measured rapidly after laboratory receipt.
The result is released once analysis, laboratory quality-control procedures and authorisation have been completed.
Courier timing, weekends or occasional repeat analysis can extend the total time from your appointment to receiving the report.
If LH is ordered as part of a broader fertility or endocrine profile containing specialist markers, the complete profile may take longer even though the LH result itself is usually available within approximately one business day.
Understanding Your Results
LH reference ranges differ according to sex, age and, in women, menstrual-cycle phase.
A higher LH concentration can be completely physiological during the mid-cycle ovulatory surge.
LH also rises after menopause because the ovaries produce less Oestradiol and Progesterone, reducing negative feedback to the pituitary.
Raised LH together with low sex-hormone levels can suggest primary ovarian or testicular dysfunction.
A low or inappropriately normal LH result in someone with low Oestradiol or Testosterone can suggest reduced hypothalamic or pituitary stimulation.
Women with PCOS can sometimes have higher LH relative to FSH, but this pattern is variable and should not be used alone to diagnose PCOS.
In men, LH should usually be interpreted alongside Testosterone.
High LH with low Testosterone may support primary testicular failure, while low or normal LH with low Testosterone can suggest central hypogonadism.
Clinical context and complementary hormones remain essential.
Why Book With London Blood Tests?
Private LH testing in London - Access individual Luteinising Hormone measurement privately.
Relevant to fertility assessment - LH plays a central role in ovulation and reproductive function.
Useful in male hormone assessment - LH helps regulate testicular Testosterone production.
Useful in menstrual investigations - Results can contribute to assessment of amenorrhoea and irregular cycles.
Relevant to pituitary assessment - LH provides information about pituitary reproductive hormone signalling.
Fast results - Expected turnaround is approximately 1 business day.
Clinic and home collection options - Professional blood collection can be arranged.
Clear pricing - The Luteinising Hormone test costs £58.
Private Luteinising Hormone Blood Test in London
London Blood Tests provides private Luteinising Hormone blood testing in London for women and men requiring targeted reproductive or pituitary hormone assessment.
The test costs £58 and measures one biomarker: Luteinising Hormone.
Results are expected approximately 1 business day after laboratory receipt.
For women who menstruate, the cycle day should be considered when interpreting the result.