Understanding the Association Between Low Semen Volume and Azoospermia
Azoospermia is the absence of sperm in semen on ejaculation. It is one of the leading causes of male infertility and the most severe form. Azoospermia is diagnosed when multiple semen samples fail to contain any sperm. It can be classified into two types: obstructive azoospermia and non-obstructive azoospermia.
Obstructive azoospermia occurs due to a blockage in the male reproductive tract, preventing the sperm from reaching the semen. Conditions such as congenital absence of the vas deferens (the duct that carries sperm from the testicles to the urethra), previous infections, or prior surgeries can lead to obstructive azoospermia.
On the other hand, non-obstructive azoospermia is characterized by the absence of sperm production in the testes. It is often caused by testicular factors, including hormonal imbalances, genetic abnormalities, testicular trauma, or certain medical conditions such as Klinefelter syndrome (a condition where boys and men are born with an extra X chromosome).
In some cases, low semen volume has been associated with azoospermia. Semen volume refers to the amount of seminal fluid produced during ejaculation. While low semen volume can be influenced by various factors, such as hydration levels, abstinence duration, or lifestyle choices, it can also indicate an underlying issue affecting sperm production and transport.
Potential causes of the association between low semen volume and azoospermia include:
Hormonal Imbalances, particularly involving the pituitary gland and the testes, can disrupt sperm production and lead to both low semen volume and azoospermia. Hormones like follicle-stimulating hormone (FSH), luteinizing hormone (LH), and testosterone play crucial roles in sperm development, and any abnormalities in their levels can affect fertility.
Testicular Disorders, such as testicular atrophy or damage, can result in decreased semen volume and impaired sperm production. In some cases, genetic abnormalities or testicular infections can contribute to both low semen volume and azoospermia.
Partial obstructions in the reproductive tract can also affect the volume of semen ejaculated. In such cases, a reduced amount of seminal fluid may be observed, indicating potential issues with sperm transport.
Treatment options for low semen volume and azoospermia depend on the underlying cause. If hormonal imbalances are identified, hormone replacement therapy may be recommended to restore normal levels and stimulate sperm production. Alternatively, in cases of obstructive azoospermia, surgical procedures can help remove blockages and restore sperm flow. These procedures may involve reconnecting or bypassing the affected ducts. In severe cases of azoospermia, where sperm production is absent or extremely low, techniques such as testicular sperm extraction (TESE) or testicular sperm aspiration (TESA) can be used to retrieve sperm directly from the testes. These sperm can then be used in conjunction with assisted reproductive technologies, such as intracytoplasmic sperm injection (ICSI), to facilitate fertilization.
Low semen volume and azoospermia can be interconnected, signalling potential issues with sperm production, transport, or hormonal imbalances. It is important to speak to a specialist to understand the underlying causes of your condition to reach an appropriate diagnosis and treatment plan.
Source: Mayo Clinic 2019, Aziz N. 2013, Gudeloglu A. and Parekattil S.J., 2013