| Term | Definition |
|---|---|
| Delayed ejaculation |
A delayed ability to ejaculate either during intercourse or with manual stimulation. |
| Depression |
A disorder characterized by feelings of extreme sadness, guilt, helplessness and hopelessness, and thoughts of death. |
| Detumescence |
Subsidence of swelling or turgor; with respect to erections, loss of rigidity. |
| Diabetes |
Refers to diabetes mellitus or, less often, to diabetes insipidus . Diabetes mellitus and diabetes insipidus share the name ""diabetes"" because they are both conditions characterized by excessive urination (polyuria). |
| Diabetes mellitus |
A chronic disease associated with high levels of sugar (glucose) in the blood. |
| Diagnosis |
The process by which a doctor determines what disease a patient has by studying the patient's symptoms and medical history, and analyzing any tests performed (blood tests, urine tests, brain scans, etc.) |
| Digital rectal examination |
The examination of the prostate by placing a gloved finger into the rectum. |
| Disease |
Any change from or interruption of the normal structure or function of any part or organ; system of the body that presents with characteristic symptoms and signs, and whose cause and prognosis may be known or unknown. |
| Diuretic |
Drugs that promote the formation of urine by the kidney. |
| Doppler (duplex) ultrasound |
Use of a Doppler probe during ultrasound to look at flow through vessels. |
| Double-blind |
Pertaining to a study, neither patient nor physician is aware of what medication the patient is receiving. |
| Duplex ultrasound |
A penile test performed by bouncing soundwaves off tissue to determine penile blood flow. |
| Dynamic infusion cavernosometry |
A test in which fluid is pumped into the penis so doctors can determine the severity of a venous leak. |
| Dysfunction |
Difficult function or abnormal function. |