Luteinizing Hormone
LH
Description
"Luteinizing Hormone" (LH) test measures LH levels in your blood to assess fertility, ovulation patterns, or pituitary function. This test is often recommended when investigating delayed puberty, PCOS symptoms, or ovulation timing. Elevated LH may signal ovulation or gonadal dysfunction, while low levels can reflect hypothalamic or pituitary issues. Results help pinpoint the cause of infertility or menstrual irregularity. Ongoing LH monitoring supports diagnosis, guides hormonal care, and informs more personalized treatment for reproductive health.
Category
Hormones
Procedure
Invasive
Sample Type
Blood – Serum
Units
International Units Per Liter
Procedure Category
Blood Draw
Test Group
Hormone Health Group, Female Hormone Group, Male Health Group, Female Health Group, Basic Sex Hormone Group, Complete Sex Hormone Group
Test Group Description
Basic Sex Hormone Group: This collection of tests provides fundamental insights into sex hormone levels and reproductive health, offering essential information for hormonal balance assessment. Complete Sex Hormone Group: This comprehensive panel offers an extensive evaluation of sex hormone status and reproductive health, providing detailed insights into hormonal balance and function. Female Health Group: A comprehensive array of tests provides insights into various aspects of female health and wellness, aiding in the evaluation and management of overall health for females. Female Hormone Group: It assesses hormone levels specific to female health, providing insights into reproductive function and hormonal balance. Hormone Health Group: Its focus is on evaluating hormone levels and function, providing insights into hormonal balance and associated health conditions. Male Health Group: A comprehensive array of tests provides insights into various aspects of male health and wellness, aiding in the evaluation and management of overall health for men. Male Hormone Group: It focuses on assessing hormone levels specific to male health, providing insights into reproductive function and hormonal balance.
Optimal Range
For Men:
Conventional Unit: 1.80–8.60 IU/L
SI Unit: 1.80–8.60 IU/L
For Women:
Conventional Unit: Pre-Menopause: 5.00–25.00 IU/L | Post-Menopause: 14.20–52.30 IU/L
SI Unit: Pre-Menopause: 5.00–25.00 IU/L | Post-Menopause: 14.20–52.30 IU/L
Normal Range
For Men:
Conventional Unit: 1.80–8.60 IU/L
SI Unit: 1.80–8.60 IU/L
For Women:
Conventional Unit: Follicular Phase: 1.68–15.00 IU/L | Ovulatory Peak: 21.90–56.60 IU/L | Luteal Phase: 0.61–16.30 IU/L | Post-Menopause: 14.20–52.30 IU/L
SI Unit: Follicular Phase: 1.68–15.00 IU/L | Ovulatory Peak: 21.90–56.60 IU/L | Luteal Phase: 0.61–16.30 IU/L | Post-Menopause: 14.20–52.30 IU/L
Results That Differ From The Norm (Direct and Indirect Causes)
Increased levels may indicate:
Adrenal insufficiency (Inadequate adrenal hormone production)
Hirsutism (Excessive hair growth)
Luteoma (Ovarian tumor)
Menstruation
Ovulation
Polycystic ovary syndrome (Hormonal disorder)
Premature ovarian insufficiency (Early menopause)
- ...
Key Reasons For Testing
Ovulation Monitoring: Tracks luteinizing hormone surges for optimal timing of conception.
Evaluation of Pituitary Gland Function: Diagnoses disorders like hypopituitarism or hyperpituitarism by measuring LH levels.
Menstrual Cycle Regulation: Assesses menstrual cycle regularity and hormonal balance in conditions like polycystic ovary syndrome (PCOS).
Assessment of Gonadal Function: Diagnoses issues like primary gonadal failure or precocious puberty in men and women.
Diagnosis of Menopause: Confirms menopause with elevated luteinizing hormone levels.
Health Status Conditions It May Be Used To Assess
Currently, this test is not directly associated with any conditions listed on the Health Status page. However, it may be included as part of a broader set of tests linked to specific health conditions.
Some Prominent Medical Labs That May Offer This Test
Please note that this particular test has not been associated with any of the listed prominent medical labs. We recommend enquiring with your private physician or nearest hospital to determine where this specific test can be performed.
References
Important Note
Any medical procedure yielding results outside the norm may be directly or indirectly linked to the conditions outlined on this page. Various factors, including genetics, medication and supplement usage, recent illnesses, pregnancy, pre-test eating, smoking, and stress, can impact the test's outcome. Additionally, factors like false positives, false negatives, inaccurate analyses, and others can influence results.
Reference ranges, which help healthcare professionals interpret medical tests, may vary depending on age, gender, and other factors. They may also differ between laboratories due to variations in instruments and methods used. Optimal ranges are designed for preventive purposes, aiming to identify trends and potential risks early, while normal ranges reflect conventional laboratory values indicating no current disease or pathology. Your healthcare practitioner may have specific reasons for testing that deviate from the usual or may interpret results differently based on individual circumstances. Proper interpretation typically involves considering clinical findings and other diagnostic tests. Hence, it is crucial to provide your healthcare professionals with a comprehensive medical history, consult with them for result interpretation, and follow their guidance for potential re-testing or additional diagnostics.
Disclaimer
This content is provided solely for informative and educational purposes. It is not intended as a substitute for medical advice or treatment from a personal physician. Regarding the interpretation of their medical test results and/or specific health questions, it is recommended that all readers and viewers consult their physicians or other qualified health professionals. The publisher is not responsible for any adverse health effects that may result from reading or following the information in this educational content. Before beginning any nutrition, supplement, or lifestyle program, all viewers, especially those taking prescription or over-the-counter medications, should consult their physician or health care practitioner.
Please note that while prominent lab names are included in this content, we cannot guarantee that these labs offer all the tests mentioned. For confirmation, individuals should contact the labs directly or consult their medical practitioners. The information provided reflects general knowledge at the time of publication and may not include recent updates or emerging research. Readers should verify details with qualified professionals to ensure the most up-to-date and accurate guidance.
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