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within the uterus.
intrauterine device (IUD) (intrauterine contraceptive device) a mechanical device inserted into the uterine cavity for the purpose of contraception. These devices are made of metal, plastic, or other substances and are manufactured in various sizes and shapes. Their effectiveness is based on their alteration of the endometrium and consequent disruption of implantation; there is generally no effect on the menstrual cycle.

After the IUD has been inserted, the patient is instructed to have yearly follow-up examinations. Contraindications to insertion include recent pelvic infection, suspected pregnancy, cervical stenosis, myoma of the uterus, and abnormal uterine bleeding. IUDs are not recommended for women who have never been pregnant because of the severe pain and bleeding that they produce in the majority of these patients.

The IUD is not 100 per cent effective and its use carries some risks. The device does not prevent ovulation or extrauterine implantation; therefore, ectopic pregnancy must be suspected when irregular bleeding or pelvic pain develops in a patient with an IUD. Four to five per cent of all pregnancies occurring in women with IUDs are likely to be outside the uterus. The increased risk for pelvic inflammatory disease is from three to five times that of women who do not use an IUD. Because pelvic inflammatory disease frequently leads to an inability to conceive as a result of scarring and narrowing of the fallopian tubes, the IUD also increases the chances for infertility. Many experts advise against the use of IUDs in women under 25 years of age and in those who hope to have children later in life.

Other possible adverse effects associated with the use of IUDs include uterine perforation, which is rare, and severely increased menstrual flow. Increased dysmenorrhea and intermenstrual bleeding are common in women who have an IUD in place.
Intrauterine contraceptive device (IUD). From Nichols and Zwelling, 1997.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


Within the uterus.
Farlex Partner Medical Dictionary © Farlex 2012


(ĭn′trə-yo͞o′tər-ĭn, -tə-rīn′)
Occurring or situated within the uterus.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


adjective Within the uterine cavity.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Within the womb (uterus).
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005


Situated or occuring in the uterus.
Mentioned in: Clubfoot
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Retention of intrauterine devices in women who acquire pelvic inflammatory disease: A systematic review; Contraception 2013; 87(5): 655-60.
Among the cases of misplaced intrauterine devices reported so far in literature,93% were retrieved by minimally invasive techniques while in 57% of cases of translocated IUDs with abdominal viscera perforation, open surgical procedures were opted 10.
Asymptomatic far-migration of an intrauterine device into the abdominal cavity: A rare entity.
Jansen, "Hysteroscopic morcellator for removal of intrauterine polyps and myomas: a randomized controlled study among residents in training," Fertility and Sterility, vol.
Main aim of the surgery should be preservation of intrauterine pregnancy.
Stalberg et al., "Intrauterine insemination: evaluation of the results according to the woman's age, sperm quality, total sperm count per insemination and life table analysis," Human Reproduction, vol.
Intrauterine and especially ectopic pregnancies are important complications of intrauterine contraception.
Rosenblatt, "Complete and partial uterine perforation and embedding following insertion of intrauterine devices," Obstetrical and Gynecological Survey, vol.
In general, there was reduction in bacterial load and bacterial colony count in all cows after treatment but intrauterine immunomodulators were effective when compared to LI and [PGF.sub.2][alpha].
Intrauterine instillation of topical anesthetic is easy, relatively painless, and promising as an adequate analgesia during diagnostic hysteroscopy.
Keywords: Aerobic microorganisms, colony-forming unit (CFU), sterilization, intrauterine device insertion, uterine sound instrument
All couples also underwent intrauterine insemination.

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