Sperm Morphology Evaluation (Head Shape Analysis)

Why This Test Is Done

Your healthcare provider may recommend this test if you or your partner have trouble getting pregnant, unexplained infertility, or if you’ve had repeated failed fertility treatments. It helps determine if sperm head abnormalities (like irregular shapes) are contributing to fertility challenges.

What to Expect Before the Test

You’ll likely provide a semen sample, often collected through masturbation into a sterile container. Avoid ejaculation for 2–3 days before testing to ensure a representative sample. Wear loose clothing and follow any specific instructions your provider gives.

What Happens During the Test

The sample is analyzed under a microscope to count and classify sperm based on head shape (e.g., normal, irregular, or defective). This is typically done as part of a broader sperm analysis, not a standalone test.

What the Results Mean

Results are usually expressed as a percentage of sperm with normal head shapes. Abnormalities may indicate genetic factors, exposure to toxins, or underlying conditions like Klinefelter syndrome or certain infections.