A normal semen analysis evaluates several key parameters to assess male fertility. According to the World Health Organization (WHO) guidelines, the criteria for a normal semen analysis include:
1. Volume: The total volume of semen should be at least 1.5 milliliters (ml).
2. Sperm Concentration: The concentration of sperm should be at least 15 million sperm per ml.
3. Total Sperm Count: The total number of sperm in the ejaculate should be at least 39 million sperm per ejaculate.
4. Sperm Motility: At least 40% of sperm should be motile (moving), with at least 32% showing progressive motility (moving in a straight line).
5. Sperm Morphology: At least 4% of sperm should have normal morphology (shape and structure).
6. pH Level: The pH level of semen should be between 7.2 and 8.0.
7. Liquefaction: Semen should liquefy within 20-30 minutes after ejaculation.

These values provide a general guideline, but individual results can vary. It’s always best to consult with a healthcare provider for a comprehensive evaluation and personalized advice.