Sexual Dictionary - letter U

Ulceration
a lesion of the skin or a mucous membrane.
Umbilical cord
the flexible cordlike structure connecting a fetus at the abdomen with the placenta and containing two umbilical arteries and one vein that transport nutrients to the fetus and remove its waste products.
Uncircumcised
the original state of the penis before circumcision. See also circumcision.
Undescended testicle
a testicle that fails to move into the scrotum and has remained within an abdominal position or the inguinal canal.
See also cryptorchidism.
Unicornuate uterus
anatomical condition of the uterus in which the uterus has only one uterine horn formed instead of two. the condition increases the chance for abnormal position of the fetus on delivery.
Ureter
either of the paired ducts that carry away urine from a kidney to the bladder.
Urethra
tube which connects the urinary bladder to the outside of the body. The urethra has an excretory function in both sexes, to pass urine to the outside, and also a reproductive function in the male, as a passage for sperm.
Urethritis
an inflammation of the urethra. Based on its causation the condition it is classified as
  • gonococcal urethritis - infection with Neisseria gonorrhoeae. See gonorrhea
  • non-gonococcal urethritis (NGU)
    • infectious causes : infections with Chlamydia trachomatis, Ureaplasma urealyticum, Mycoplasma genitalium, Trichomonas vaginalis, Herpes simplex virus, and Candida albicans
    • non-infectious causes : urethral stricture, foreign bodies, trauma, and various autoimmune and allergic conditions
Urinary incontinence
involuntary loss of urine and unability to hold urine and prevent its leakage.
Urinary tract
the path that urine takes as it leaves the body. It includes the kidneys, ureters, bladder, and urethra.
Urinary tract infection (UTIs)
an infection anywhere in the urinary tract, or organs that collect and store urine and release it from the body. An infection occurs when microorganisms, usually bacteria get into the urethra (opening to the urinary tract) and begin to multiply. In females, the urethra is much shorter and closer to the anus than in males. This is the reason why, in general, women are more prone to UTIs than men. An urinary tract infection often causes frequent urination, pain, burning when urinating, and sometime blood in the urine.
Urine
liquid containing body wastes secreted by the kidneys, transported by the ureters, stored in the bladder, and voided through the urethra.
Urogenital system
the system that includes all organs involved in the production and excretion of urine, together with the organs of reproduction.
Urolagnia
sexual attraction to urine. People with urolagnia often like to urinate in public, or urinate on, or be urinated on by, other people. Some like to watch others doing these things.
Urology
the branch of medicine concerned with the urinary tract in both genders, and with the genital tract or reproductive system in the male. The specialist is called urologist.
Uterine anomaly
a birth defect resulting in abnormal uterine shape. Includes septate uterus, unicornuate uterus or bicornuate uterus.
Uterine prolapse
a condition in which the uterus has slipped from its normal position and protrudes into, and sometimes out of, the vagina May be caused by pregnancy and childbirth, heavy lifting, obesity or connective tissue disorders.
Uterus
female reproductive organ in which the fertilized egg implants, that houses and nourishes the developing fetus.
Also called womb.