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Understanding Infertility
Glossary
A diagnosis, or even a general conversation about infertility can take individuals unfamiliar with the language of reproductive technologies, on a roller coaster ride of new information and understanding. Here you will find easy to understand definitions for commonly used terms related to infertility and infertility treatment.
- Hormone
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A chemical, produced by an endocrine gland, which circulates in the blood and has widespread action throughout the body.
- Human Chorionic Gonadotropin (hCG)
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A hormone secreted by the placenta during pregnancy that prolongs the life of the corpus luteum, progesterone production and thus preserves the pregnancy; this hormone accounts for pregnancy tests being positive; it may also be administered therapeutically to induce ovulation.
- Human Menopausal Gonadotropins (hMG)
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Are a good source of follicle stimulating hormone (FSH) and lutenizing hormone (LH) which are excreted in the urine of a menopausal woman and then distilled, filtered and purified; is administered by intramuscular injection.
- Hyperstimulation Syndrome
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A syndrome that may include ovarian enlargement, gastrointestinal symptoms, abdominal distension secondary to fluid accumulation and weight gain. Severe cases may be further complicated with cardiovascular, pulmonary and electrolyte disturbances, requiring hospitalization.
- Hypogonadotropic Hypogonadism
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A state of complete failure to produce gonadotropins that can be brought about by surgery or radiotherapy for a pituitary tumour, certain medical conditions and is found in some women who are severely underweight such as some female marathon runners.
- Hypothalamus
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The part of the central nervous system (central area on the underside of the brain) that communicates with the pituitary gland to control involuntary functions such as body temperature and the release of hormones.