failure of the development of sperm or the absence of sperm in semen; one of the most common factors in male infertility.
form of radiation therapy in which radioactive pellets or seeds are implanted directly into the tissue being treated to deliver their dose of radiation in a more directed fashion.
abnormal, stone-like concretion of calcium, cholesterol, mineral salts, or other substances that forms in any part of the body.
ventral (downward) curvature of the penis due to a fibrous band along the corpus spongiosum seen congenitally with hypospadias, or a downward curvature seen on erection in disease conditions causing a lack of distensibility in the tissues.
chronic interstitial cystitis
persistently inflamed lesion of the bladder wall, usually accompanied by urinary frequency, pain, nocturia, and a distended bladder.
infectious tumor-like growth caused by the human papilloma virus, with a branding connective tissue core and epithelial covering that occurs on the skin and mucous membranes of the perianal region and external genitalia.
coiled tube on the back of the testis that is the site of sperm maturation and storage and where spermatozoa are propelled into the vas deferens toward the ejaculatory duct by contraction of smooth muscle.
male anomaly in which the urethral opening is abnormally located on the dorsum of the penis, appearing as a groove with no upper urethral wall covering.
extrophy of bladder
congenital anomaly occurring when the bladder everts itself, or turns inside out, through an absent part of the lower abdominal and anterior bladder walls with incomplete closure of the pubic bone.
temporary indwelling urethral catheter held in place in the bladder by an inflated balloon containing fluid or air.
blood in the seminal fluid, often caused by inflammation of the prostate or seminal vesicles, or prostate cancer.
blood in the urine, which may present as gross visible blood or as the presence of red blood cells visible only under a microscope.
congenital anomaly in which the kidneys are fused together at the lower end during fetal development, resulting in one large, horseshoe shaped kidney, often associated with cardiovascular, central nervous system, or genitourinary anomalies.
distention of the kidney caused by an accumulation of urine that can't flow out due to an obstruction that may be caused by conditions such as kidney stones or vesicoureteral reflux.
abnormal enlargement or distension of the ureter with water or urine caused by an obstruction.
fairly common birth defect in males in which the meatus, or urinary opening, is abnormally positioned on the underside of the penile shaft or in the perineum requiring early surgical correction.
psychosexual or organic dysfunction in which there is partial or complete failure to attain or maintain erection until completion of the sexual act.
destruction of calcified substances in the gallbladder or urinary system by smashing the concretion into small particles to be washed out. This may be done by surgical or noninvasive methods, such as ultrasound.
placement of a stent, tube, or catheter that forms a passage from the exterior of the body into the renal pelvis or calyx, often for drainage of urine or an abscess, for exploration, or calculus extraction.
dysfunctional bladder due to a central or peripheral nervous system lesion that may result in incontinence, residual urine retention, infection, stones, and renal failure.
surgical removal of one or both testicles via a scrotal or groin incision, indicated in cases of cancer, traumatic injury, and sex reassignment surgery.
pertaining to the pelvic floor area between the thighs; the diamond-shaped area bordered by the pubic symphysis in front, the ischial tuberosities on the sides and the coccyx in the back.
development of fibrotic hardened tissue or plaque in the cavernosal sheaths in the penis. This causes pain and a severe chordee or curvature in the penis, typically during erection.
condition in which the foreskin is contracted and can't be drawn back behind the glans penis.
persistent, painful erection lasting more than 4 hours and unrelated to sexual stimulation, causing pain and tenderness.
male gland surrounding the bladder neck and urethra that secretes a substance into the seminal fluid.
paired glands located at the base of the bladder in males that release the majority of fluid into semen through ducts that join with the vas deferens forming the ejaculatory duct.
paraurethral ducts that drain a group of the female urethral glands into the vestibule.
structure of the male reproductive organs that consists of the ductus deferens, testicular artery, nerves and veins that drain the testes.
male gonadal paired glands located in the scrotum that secrete testosterone and contain the seminiferous tubules where sperm is produced.
triangular, smooth area of mucous membrane at the base of the bladder, located between the ureteric openings in back and the urethral opening in front.
serous membrane that partially covers the testes formed by an outpocketing of the peritoneum when the testes descend.
embryonic tube connecting the urinary bladder to the umbilicus during development of the fetus that normally closes before birth, generally in the fourth or fifth month of gestation.
small tube lined with mucous membrane that leads from the b ladder to the exterior of the body.
small, polyp-like growth of a deep red color found in women on the mucous membrane of the urethral opening.
duct that arises in the tail of the epididymis that stores and carries sperm from the epididymis toward the urethra.