why the male sex organ sometimes fails to erect

Question: why the male sex organ sometimes fails to erect
- Keywords:
  erection,
  failure
Asked by Paplidor to Sammy on 14 Jul 2017.
- Sammy Wambua answered on 14 Jul 2017:
  
  Hi Paplidor,
  
  Great question.
  There are factors that may cause erectile dysfunction. The leading one is usually anxiety. But there may be others like ill health and fatigue. Most of these causes are hardly serious but if one has erectile dysfunction of an unknown cause it is best to be seen by a doctor.
  
  Let me know if I can clarify

Question: why the male sex organ sometimes fails to erect