Home / Blood Tests / Prolactin (PRL)

Prolactin (PRL)

What is Prolactin?

Prolactin is a hormone produced by the anterior pituitary gland and is released in a pulsatile manner. It plays a crucial role in reproductive health and lactation, with its levels influenced by various physiological conditions, particularly during and after pregnancy.

Prolactin and Pregnancy

During pregnancy, prolactin levels naturally rise in response to increased oestrogen and progesterone production. This hormone is responsible for preparing the mammary glands and stimulating milk production following childbirth.

Effects of Elevated Prolactin Levels

Hyperprolactinemia, or elevated prolactin levels, is a leading cause of fertility issues in both men and women. It can disrupt normal reproductive hormone cycles and lead to:

Anovulatory cycles

Amenorrhea (absence of menstruation)

Galactorrhea (unexpected milk production)

Gynecomastia in men

Azoospermia (absence of sperm in semen)

Diagnostic Use of Prolactin Testing

Prolactin testing is a valuable diagnostic tool for identifying hormonal imbalances and underlying causes of reproductive and endocrine disorders. It is commonly used in the investigation of:

Irregular or absent menstrual cycles

Infertility concerns

Abnormal breast discharge

Suspected pituitary gland tumours

Unexplained breast tissue development in men

It may also be part of the diagnostic process for suspected breast cancer or pituitary adenomas.

Prolactin Blood Test in Slough

If you are based in Slough or nearby areas and are experiencing symptoms related to hormonal imbalance or fertility issues, a prolactin blood test can provide essential insights. Local diagnostic services in Slough offer comprehensive hormone testing to support accurate diagnosis and personalised treatment planning.