Fact sheets Lupus Acromegaly Immune thrombocytopenic purpura Primary biliary cholangitis Autosomal dominant polycystic kidney disease Castleman disease Chronic inflammatory demyelinating polyneuropathy Fabry disease Cushing syndrome Bullous pemphigoid See more Testicular regression syndrome on the forum What is the most frustrating or difficult... Erectile dysfunction I have gynecomastia (male breast enlargement) See the forum Testicular regression syndrome