What are testosterone synthesis deficiencies?

There are several sites to be found online - and it's difficult to choose from the many. Therefore we recommend you to go to www.orphanet.org and to look for

• 46,XY disorder of sex development due to 5-alpha-reductase 2 deficiency or
• 46,XY disorder of sex development due to 17-beta-hydroxysteroid dehydrogenase 3 deficiency