What are the examination methods for obstructive azoospermia?
Disease description:
I've had two semen analyses, and no sperm were found. The doctor said we need to check whether the absence of sperm is due to an obstructed vas deferens. What are the diagnostic methods for detecting obstruction in the seminal tract?
Doctor's answer (1)
Dr. Luo Yong
The main diagnostic methods for obstructive disorders of the vas deferens include:
1. Physical examination: The doctor performs palpation and visual inspection of the scrotum, testes, epididymis, and related areas to make a preliminary assessment of possible obstruction in the vas deferens.
2. Semen analysis: Evaluation of semen volume, pH, white blood cells, red blood cells, and other parameters helps determine the presence of obstructive conditions.
3. Hormonal testing: Measurement of hormone levels such as testosterone, estradiol, and prolactin; abnormalities may be associated with obstructive azoospermia.
4. Ultrasound examination: Using the physical properties of ultrasound to perform cross-sectional imaging of specific body regions, this method can detect conditions such as varicocele or obstruction of the vas deferens.
5. Vasography: A contrast agent is injected into the vas deferens via a catheter, followed by X-ray imaging to visualize the detailed anatomy of the seminal tract. This is an accurate diagnostic method.
