Sperm Analysis Results: Understanding Count, Motility, and Morphology

Preparing for a Semen Analysis

Proper preparation ensures accurate results. Most laboratories require:

• Abstinence period: 2-5 days without ejaculation (too short or too long affects results)
• Avoid heat exposure: No hot tubs, saunas, or laptops on lap for 1-2 weeks prior
• Collection method: Typically by masturbation into a sterile cup provided by the lab
• Timing: Sample should reach the lab within 30-60 minutes of collection, kept at body temperature
• Repeat testing: At least 2 tests, 2-4 weeks apart, are recommended for accuracy

Understanding Sperm Count (Concentration)

Sperm count measures how many sperm are present per milliliter of semen. The WHO reference value is 15 million sperm/mL or higher, though 39 million per ejaculate is the total threshold.

• Normal (>15 million/mL): Adequate for natural conception
• Low (10-15 million/mL): Mild oligospermia; may take longer to conceive
• Very Low (5-10 million/mL): Moderate oligospermia; may benefit from IUI or IVF
• Severely Low (<5 million/mL): Severe oligospermia; ICSI-IVF often recommended
• Azoospermia (0 sperm): No sperm in ejaculate; requires specialist evaluation for cause

Sperm Motility: Why Movement Matters

Motility measures what percentage of sperm are moving and how well. Sperm must swim through cervical mucus, the uterus, and fallopian tubes to reach the egg—a journey that requires strong, progressive movement.

• Progressive motility: Sperm moving forward in a straight line or large circles (should be ≥32%)
• Total motility: All moving sperm, including those moving in circles (should be ≥40%)
• Non-progressive: Moving but not making forward progress
• Immotile: Not moving at all

Sperm Morphology: Shape and Structure

Morphology assesses the shape of sperm—including head size and shape, midpiece, and tail. Only sperm with normal morphology can effectively fertilize an egg. Using strict Kruger criteria:

• Normal (≥4%): Adequate for natural conception
• Low (2-4%): Reduced but not eliminated fertility potential
• Very Low (0-1%): May require ICSI where sperm is injected directly into egg
• Common abnormalities: Head defects, tail defects, midpiece abnormalities

Semen Volume and Other Parameters

Beyond the main three parameters, your semen analysis will include:

• Volume: Normal is 1.5-5 mL per ejaculate; low volume may indicate blocked ducts
• pH: Should be 7.2-8.0; abnormal pH suggests infection or duct issues
• Liquefaction: Semen should liquefy within 20-30 minutes after ejaculation
• White blood cells: High counts may indicate infection
• Vitality: Percentage of live sperm; important if motility is low

What Abnormal Results Mean

One abnormal result doesn't necessarily mean infertility. Sperm production varies, and temporary factors like illness, stress, or heat exposure can affect results. If results are abnormal, your doctor will likely recommend repeat testing and may order additional tests like hormone panels or genetic testing.

Key takeaways

• Semen analysis should be repeated at least twice for accurate assessment
• Abstain for 2-5 days before testing for optimal results
• Count, motility, and morphology are the three main parameters
• Lifestyle changes take 2-3 months to affect sperm quality
• Male factor contributes to ~50% of infertility cases—testing is essential

Frequently asked questions