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, your …
Sperm: How long do they live after ejaculation? - Mayo Clinic
Mar 12, 2025 · Getting pregnant How long do sperm live after ejaculation? In general, sperm live for several days after being ejaculated during sex. Sperm typically can stay alive for about 3 to 5 days …
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 show if you're able …
Low sperm count - Symptoms and causes - Mayo Clinic
Oct 23, 2024 · Your sperm count is considered lower than typical if you have fewer than 15 million sperm per milliliter of semen. Having a low sperm count makes it less likely that one of your sperm …
In vitro fertilization (IVF) - Mayo Clinic
During in vitro fertilization, mature eggs are collected from ovaries and fertilized by sperm in a lab. Then a procedure is done to place one or more of the fertilized eggs, called embryos, in a uterus, which is …
Stem cells: What they are and what they do - Mayo Clinic
Jan 20, 2026 · What are stem cell lines, and why do researchers want to use them? A stem cell line is a group of cells that all descend from a single original stem cell and are grown in a lab. Cells in a stem …
Fertilization and implantation - Mayo Clinic
Fertilization and implantation During fertilization, the sperm and egg unite in one of the fallopian tubes to form a zygote. Then the zygote travels down the fallopian tube, where it becomes a morula. Once it …
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, lifestyle …
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 system, they …
Fertility preservation: Understand your options before cancer treatment
Jan 21, 2026 · Find out how cancer treatment can affect your ability to have a child, as well as what fertility preservation steps you can take before you begin cancer treatment.