AllRefer Health - Caring for your Well Being

Home | About | FAQs | Contact Us

AllRefer Channels :: Yellow Pages | Reference | Health  

Diseases & Conditions
Select & Go
 Diet & Nutrition
 Diseases & Conditions 
 Injuries & Wounds
 Poisons & Overdoses
 Surgery & Procedures 
 Symptoms Guide
 Special Topics
 Tests & Exams
 Pictures & Images
 Medical Encyclopedia

You are here : AllRefer.com > Health > Diseases & Conditions > Androgen insensitivity syndrome

Androgen insensitivity syndrome

Alternate Names : Testicular feminization


Definition

Androgen insensitivity syndrome (AIS) is when a person who is genetically male (has one X and one Y chromosome) is resistant to male hormones called androgens. As a result, the person has some or all of the physical characteristics of a woman, despite having the genetic makeup of a man.

Overview, Causes, & Risk Factors

Androgen insensitivity syndrome (AIS) is caused by various genetic defects on the X chromosome which make the body unable to respond to the hormones responsible for the male appearance.

The syndrome is divided into two main categories:

  • Complete AIS
  • Incomplete AIS

Complete androgen insensitivity prevents the development of the penis and other male body parts. The child born appears to be a girl. The complete form of the syndrome occurs in as many as 1 in 20,000 live births.

The degree of sexual ambiguity varies widely in persons with incomplete AIS. Incomplete AIS can include other disorders such as Reifenstein syndrome (also known as Gilbert-Dreyfus syndrome or Lubs syndrome), which is associated with breast development in men, failure of one or both testes fail to descend into the scrotum after birth, and hypospadias, a condition where the opening of the urethra is on the underside, rather than at the tip, of the penis.

Also included in the broad category of incomplete AIS is infertile male syndrome, which is sometimes due to an androgen receptor disorder.

Pictures & Images

Male reproductive anatomy
Male reproductive anatomy

       
      See all Pictures & Images



Quick Jump
1 | 2 | 3 | 4 | 5 | 6

Next
Symptoms, Diagnosis & Tests

Jump To Another Page

Review Date : 7/15/2008
Reviewed By : Robert Cooper, MD, Endocinology Specialist and Chief of Medicine, Holyoke Medical Center, Assistant Professor of Medicine, Tufts University School of Medicine, Boston MA Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.



Featured Topics

Alzheimer's Disease

High Blood Pressure

Crohn's Disease

Impotence

Overactive Bladder

ADAM

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is the first of its kind, requiring compliance with 53 standards of quality and accountability, verified by independent audit. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial reviewers. A.D.A.M. is also a founding member of Hi-Ethics (www.hiethics.com) and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2003 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

This website is certified by Health On the Net Foundation. Click to verify.
This site complies to the HONcode standard for trustworthy health information: verify here.
Copyright © 2013 AllRefer.com All Rights reserved.
Health Topics: 0-9 A-AID Air-Aor Aor-Azo B-Blo Blo-Bys C-Cha Cha-Col Col-CSF CSF-Cyt D-Dis Dis-Dys E-Ess Est-Eye F-FSP FTA-Fus G H-Her Her-Hys I-Iod Ion-Ivy J K L-Luc Lud-Lym M-Min Min-Myx N O P-Pes Pes-Pre Pre-Pyr Q R-Rig Rig-RVA s-SID SID-Spu Spu-Sys T-Too Too-Typ U V W X Y Z
About Us | Help | Privacy Policy | Editorial Policy | Advertising Policy | Accessibility | Terms of Use
Contact Us | Link to Us
Page Last Updated: 19 Dec, 2014