Erectile dysfunction is the most common cause of erectile dysfunction.

Erectile dysfunction commonly used laboratory tests should pay attention to maintain fasting state, do not drink alcohol before the examination, maintain emotional stability, etc.

1. Keep fasting state

patients need to conduct blood biochemical tests, before the examination should maintain fasting state, so as not to change the blood composition, affecting the examination results.

2. Do not drink alcohol before the examination

. The day before the examination, alcohol may cause vasodilation, stimulate the central nervous system, and affect the secretion of hormones.

3. Maintain emotional stability

Patients should also maintain emotional stability, prevent endocrine disorders, affect sex hormone secretion, and cause abnormal examination results.