Low Testosterone (Low-T) Glossary of Terms

The following are health and medical definitions of terms that appear in the Low Testosterone (Low-T) article.

Abnormal: Outside the expected norm, or uncharacteristic of a particular patient.

Aging: The process of becoming older, a process that is genetically determined and environ...

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Anemia: The condition of having a lower-than-normal number of red blood cells or quantity ...

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Blood pressure: The blood pressure is the pressure of the blood within the arteries. It is...

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Body mass index: A key index for relating weight to height. Abbreviated BMI. BMI is a pers...

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Bone density: Bone density is the amount of bone tissue in a certain volume of bone. It ca...

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Brain: The portion of the central nervous system that is located within the skull. It func...

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Cell: The basic structural and functional unit of any living thing. Each cell is a small c...

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Chemotherapy: 1. In the original sense, a chemical that binds to and specifically k...

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Chromosome: A carrier of genetic information that is visible under an ordinary light micro...

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COPD: Chronic obstructive pulmonary disease. Any disorder that persistently obstructs bron...

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Depression: An illness that involves the body, mood, and thoughts and that affects the way...

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Diabetes: Refers to diabetes mellitus or, less often, to diabetes insipidus. Diabetes mell...

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Diagnosis: 1 The nature of a disease; the identification of an illness. 2 A ...

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Dysfunction: Difficult function or abnormal function.

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Endocrine: Pertaining to hormones and the glands that make and secrete them into the blood...

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Erectile dysfunction: A consistent inability to sustain an erection sufficient for sexual ...

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Estrogen: A female steroid hormone that is produced by the ovaries and, in lesser amounts,...

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FDA: Food and Drug Administration.

Female genitalia: The genital organs of the female. These are usually separated by conven...

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Fertility: The ability to conceive and bear children, the ability to become pregnant throu...

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Genetic: Having to do with genes and genetic
information.

Genitalia: The male or female reproductive organs. The genitalia include internal and exte...

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Gland: A group of cells that secrete a substance for use in the body. For example, the thy...

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High blood pressure: A repeatedly elevated blood pressure exceeding 140 over 90 mmHg. Chro...

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HIV: Acronym for the Human Immunodeficiency Virus, the cause of AIDS (acquired immunodefi...

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Hormone: A chemical substance produced in the body that controls and regulates the activit...

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Hormone therapy: Treatment of disease or symptoms with synthetic or naturally derived horm...

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Hot flashes: A sudden wave of mild or intense body heat caused by rushes of hormonal chang...

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Hypogonadism: A condition in which decreased production of gonadal hormones leads to below...

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Hypothalamus: The area of the brain that secretes substances that influence pituitary and ...

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Indicate: In medicine, to make a treatment or procedure advisable because of a particular ...

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Infertility: Diminished or absent ability to conceive and bear offspring. A couple is cons...

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Inflammation: A localized reaction that produces redness, warmth, swelling, and pain as a ...

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Injury: Harm or hurt. To harm, hurt, or wound. The word injure may be in physical or emot...

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Low testosterone: Abnormally low levels of the male sex hormone testosterone in the blood....

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Memory: 1. The ability to recover information about past events or knowledge. ...

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Mumps: An acute (sudden, shortlived) viral illness that usually presents with inflammation...

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Muscle: Muscle is the tissue of the body which primarily functions as a source of power. T...

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Normal range: Characteristic of 95 percent of values from a normal population. The remaini...

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OB/GYN: A commonly used abbreviation. OB is short for obstetrics or for an obstetrician, ...

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Obesity: The state of being well above one's normal weight.

Onset: In medicine, the first appearance of the signs or symptoms of an illness as, for ex...

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Orchitis: Inflammation of the testis. Causes of orchitis include mumps and other infection...

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Orgasm: A series of muscle contractions in the genital region that is accompanied by sudde...

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Osteoporosis: Thinning of the bones, with reduction in bone mass, due to depletion of calc...

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Ovarian: Of or pertaining to the ovary.

Pediatric: Pertaining to children.

Penile: Of or pertaining to the penis.

Penis: The external male sex organ. The penis contains two chambers, the corpora cavernosa...

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Pituitary: 1. As an adjective, pertaining to the pituitary gland or its hormonal se...

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Pituitary gland: The main endocrine gland. It is a small structure in the head. It is ca...

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Prognosis: The forecast of the probable outcome or course of a disease; the patient's chan...

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Puberty: Adolescence, the period in which the human body first becomes capable of reproduc...

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Radiation: 1. Rays of energy. Gamma rays and X-rays are two of the types of energy ...

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Radiation therapy: The use of high-energy rays to damage cancer cells, stopping them from ...

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Red blood cells: The blood cells that carry oxygen. Red cells contain hemoglobin and it is...

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Renal: Having to do with the kidney. For example, renal cancer is cancer of the kidneys.

Sarcoidosis: A disease of unknown origin that causes small lumps (granulomas) due to chron...

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Sleep: The body's rest cycle.

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Sperm: A sperm is the male "gamete" or sex cell. It combines with the female &qu...

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Steroid: One of a large group of chemical substances classified by a specific carbon struc...

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Stress: In a medical or biological context stress is a physical, mental, or emotional fact...

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Sweating: The act of secreting fluid from the skin by the sweat (sudoriferous) glands. The...

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Symptom: Any subjective evidence of disease. In contrast, a sign is objective. Blood comin...

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Testes: Plural of testis.

Testicles: The testicles (also called testes or gonads) are the male sex glands. They are ...

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Testosterone: A "male hormone" -- a sex hormone produced by the testes that encourages th...

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Therapy: The treatment of disease. Therapy is synonymous with treatment.

Topical: Pertaining to a particular surface area. For example, a topical agent is applied ...

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Tuberculosis: A highly contagious infection caused by the bacterium called Mycobacterium ...

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Y chromosome: The sex chromosome that is found, together with an X chromosome, in most nor...

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