Intracytoplasmic Sperm Injection (ICSI): Process and Use
Intracytoplasmic sperm injection places one sperm directly into an egg during IVF and may help when sperm count, movement, or fertilizing ability is severely reduced.
Azoospermia: Types, Causes, Diagnosis, and Fertility
Azoospermia means no sperm are detected in ejaculated semen because of blockage or impaired sperm production, although treatment may sometimes help.
Oligospermia: Causes, Testing, Treatment, and Fertility
Oligospermia, or oligozoospermia, means semen contains a lower-than-expected sperm concentration, which may reduce fertility but does not rule out pregnancy.
Asthenozoospermia: Causes, Testing, and Fertility
Asthenozoospermia means that sperm have reduced movement, which may make fertilization more difficult but does not always prevent natural pregnancy.
Teratozoospermia: Causes, Diagnosis, and Fertility
Teratozoospermia means that a lower-than-expected proportion of sperm have typical shapes, which may affect fertilization but does not always prevent pregnancy.
Retrograde Ejaculation: Causes, Symptoms, and Fertility
Retrograde ejaculation occurs when semen enters the bladder during orgasm instead of leaving through the penis, often causing little visible semen.
Ejaculatory Duct: Anatomy, Function, and Obstruction
The ejaculatory ducts are paired tubes that carry sperm and seminal-vesicle fluid through the prostate into the urethra during ejaculation.
Klinefelter Syndrome: Meaning, Symptoms, and XXY Pattern
Klinefelter syndrome is a sex chromosome variation, usually involving an XXY pattern, that may affect testosterone, puberty, fertility, and development.
Infertility: Meaning, Causes, Testing, Treatment, and Sexual Health
Infertility is difficulty achieving pregnancy after a medically defined period and may involve sperm, ovulation, hormones, reproductive organs, or unexplained factors.