HCG

Human Chorionic Gonadotrophin; a hormone which behaves like LH; made by the placenta, hCG may be extracted and used together with hMG to treat hypogonadism.

HCG/HMG Therapy

Human Chorionic Gonadotropin / Human Menopausal Gonadotropin therapy.

HDL

High-density lipoproteins.

Hemianopsia

Loss of one half of the field of vision (the area that can be seen by each eye when staring straight ahead).

Hereditary

Transferred via genes from parent to child. Also called genetic.

Herniation

Bulging of tissue through an opening in a membrane, muscle or bone.

Heterogeneous

Composed of varied cell types.

HMG

The Human Menopausal Gonadotropin

Homogeneous

Composed of identical cell types.

Hormone (Adj. Hormonal)

A chemical "messenger" which is made and secreted by an endocrine gland and which targets one or more parts of the body, modifying its structure or changing the way it works.

Hormone Replacement Therapy

The name given to a form of treatment in which missing or deficient hormones can be replaced, the body being encouraged to behave normally as if it were making the hormones naturally.

Hydrocephalus

A condition marked by an excessive accumulation of fluid resulting in enlarging of the brain cavities and raised pressure within the skull; may also result in enlargement of the skull and wasting of the brain.

Hyperfractionation

An increased number of smaller dosage treatments of radiation therapy.

Hyperparathyroidism

Hyperparathyroidism is a condition where the parathyroid glands, located in the neck near the thyroid gland, make too much parathyroid hormone.

Hypogonadism (Adj. Hypogonadal)

The inability of the gonads to function normally.

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