- Sperm washing
The dilution of a semen sample with various tissue culture media in order to separate viable sperm from the other components of semen.
See Sperm Preparation
- Spermicide
an agent that kills sperm
- Spinal cord injuries
Injury to the spinal cord causes fertility problems in paraplegic and quadriplegic men, although not generally in women. Because of these conditions sperm quantity and quality may be decreased, there may be erection and ejaculation dysfunction, and infections of the reproductive tract may occur.
- Spontaneous abortion
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Spontaneous abortion - A miscarriage or an unintended termination of a pregnancy before the twentieth week.
- STD
Infectious diseases transmitted primarily by sexual contact, including syphilis, gonorrhea, chlamydia, herpes, and acquired immunodeficiency syndrome.
- Sterility
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Sterility - The total inability to reproduce. Not to be confused with infertility.
- Sterilization
a surgical procedure (such as tubal ligation or vasectomy) designed to produce infertility
- Sterilization reversal
a surgical procedure used to undo a previous sterilization operation and restore fertility
- Stimulation
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Stimulation - Administration of hormones which induce development of multiple ovarian follicles.
- Superovulation
stimulation of multiple ovulation with fertility drugs;
also known as controlled ovarian hyperstimulation (COH)
- Surrogate gestational mother
A woman who gestates and carries to term an embryo to which she is not genetically related, with the intention of relinquishing the child at birth.
- Surrogate mother
a woman who becomes artificially inseminated with a man's sperm and carries the pregnancy for an infertile couple (the man being the biological father of the child), with the intention of relinquishing the child at birth.
