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  1. Sperm morphology: What does it mean? - Mayo Clinic

    Mar 12, 2025 · What does this mean? Sperm morphology refers to the size and shape of sperm. It's one factor that healthcare professionals look at as part of a semen test. The test helps …

  2. Sperm: How long do they live after ejaculation? - Mayo Clinic

    Mar 12, 2025 · Request Appointment Healthy Lifestyle Getting pregnant How long do sperm live after ejaculation? In general, sperm live for several days after being ejaculated during sex. …

  3. Male infertility - Symptoms and causes - Mayo Clinic

    Dec 28, 2022 · Male infertility can be caused by low sperm production, abnormal sperm function or blockages that prevent the delivery of sperm. Illnesses, injuries, chronic health problems, …

  4. Low sperm count - Diagnosis and treatment - Mayo Clinic

    Oct 23, 2024 · Diagnosis You may learn that you have a low sperm count if you get a healthcare checkup because you're having trouble getting your partner pregnant. At your appointment, …

  5. Germ cell tumors - Symptoms and causes - Mayo Clinic

    Mar 11, 2025 · Germ cell tumors are growths of cells that form from reproductive cells called germ cells. In the female reproductive system, germ cells turn into eggs. In the male reproductive …

  6. Healthy sperm: Improving your fertility - Mayo Clinic

    Mar 11, 2025 · Having healthy sperm is an important part of fertility. But a variety of factors can affect sperm health. Learn about steps to take, as well as things to avoid, to keep sperm …

  7. Does male masturbation affect fertility? - Mayo Clinic

    Oct 16, 2025 · Male masturbation has little effect on sperm count or quality.

  8. Down syndrome - Symptoms and causes - Mayo Clinic

    Nov 12, 2024 · Down syndrome is a genetic condition caused when an unusual cell division results in an extra full or partial copy of chromosome 21. This extra genetic material causes …

  9. Triple X syndrome - Symptoms & causes - Mayo Clinic

    Jan 15, 2025 · Mosaic. Occasionally, the extra chromosome results from an incorrect cell division caused by a random event early in the embryo's development. If this is the case, the child has …

  10. Stem cells: What they are and what they do - Mayo Clinic

    Mar 23, 2024 · Stem cell therapy, also known as regenerative medicine, promotes the repair response of diseased, dysfunctional or injured tissue using stem cells or their derivatives. It is …