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Luteinizing Hormone (LH)

What is Luteinizing Hormone (LH)?

Luteinizing hormone (LH) is a vital hormone produced by the pituitary gland located in the brain. It plays a crucial role in reproductive health and hormonal balance in both women and men.

LH Function in Women

In women, LH is essential for regulating the menstrual cycle and triggering ovulation. A surge in LH levels typically occurs just before ovulation, prompting the release of an egg from the ovary. This hormonal surge is a key marker used in fertility tracking and assisted reproduction.

LH Function in Men

In men, LH stimulates the testes to produce testosterone, which is necessary for sperm production, libido, and the development of male secondary sexual characteristics. Abnormal LH levels in men can signal issues with testicular function and hormonal imbalance.

Diagnostic Use of LH Testing

A blood test to measure LH levels is commonly used to:

Evaluate fertility issues in both men and women

Monitor ovulation induction during fertility treatments such as IUI or IVF

Investigate menstrual irregularities

Diagnose conditions like hypogonadism in men, which may cause low testosterone, infertility, and erectile dysfunction

LH Testing in Slough

For individuals in Slough and surrounding areas seeking fertility evaluation or hormone health screening, LH blood testing is an important diagnostic tool. Local clinics in Slough offer reliable testing services to support reproductive health, track ovulation, and identify hormonal imbalances for both men and women.

There is an additional £25 phlebotomy fee for every donation.