Glossary

This page offers definitions and phrases of various Erectile Dysfunction related terms.
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Salvage -  A procedure intended to "rescue" a patient after a failed prior therapy.
Scrotum -  The pouch of skin that contains the testicles.
Selective serotoni reuptake inhibitors -  See SSRI.
Semen -  The thick whitish fluid, produced by glands of the male reproductive system, that carries the sperm (reproductive cells) through the penis during ejaculation.
Sex hormones -  Substances (estrogens and androgens) responsible for secondary sex characteristics (hair growth and voice change in males).
Sexual dysfunction -  An abnormality in function of any component of the sexual response cycle.
Sexual response cycle -  The cycle of interest, arousal, climax, ejaculation, and detumescence.
Sickle cell disease/sickle cell trait -  A condition that affects African-Americans. The red blood cells take on an abnormal shape (sickle) in response to decreased oxygenation, dehydration, and acidosis. This abnormal shape makes it difficult for the red blood cells to pass through the blood vessels and leads to blockages of the vessels, causing pain and ischemia to tissues. In the penis, it may lead to priapism.
Side effect -  A reaction to a medication or treatment.
Sildenafil (Viagra) -  The first effective, FDA-approved oral therapy for erectile dysfunction. Sildenafil is a phosphodiesterase type 5 inhibitor.
Sinusoid -  A blood-filled cavernous space. In the penis, these spaces are separated by a network of connective tissues containing muscle cells, small arteries, veins, and nerves.
Somnolence -  Sleepiness, unnatural drowsiness
SSRI -  Selective serotonin reuptake inhibitor. Used for depression and also for premature ejaculation. Commonly used SSRIs include sertraline, paroxetine, fluoxetine.
Subjective -  Pertaining to or perceived by the affected individuals, not perceptible to the other senses of another person.
Supraphysiologic -  Higher than the normal function state or level in the body.
Symptom -  Subjective evidence of a disease, i.e., something the patient describes, such as pain in abdomen.
Syncope -  A temporary loss of consciousness.