In addition to the support services in the main relationship issues page, the following are targeted specifically at those suffering from sexual health issues.

Sexual Health Advice:

Most sexually transmitted infections (STIs) can be easily diagnosed and treated at Genito-Urinary Medicine (GUM) clinics which are usually based in local hospitals. If you think you may have an STI, you can refer yourself to any GUM clinic for advice and treatment. The service is completely confidential and you don't have to go to your nearest clinic if you don't want to.  Search for your local sexual health service.  

• NHS Choices - sexual health common questions
  
  
• Terrence Higgins Trust
  
  Deliver health promotion campaigns and direct support to people who are at risk or living with HIV across the UK.
  
  
• Brook Advisory Centres 
  The only national voluntary sector provider of free and confidential sexual health advice and services specifically for young people under 25.
  
  
• TheSite.org 
  Advice for young adults on sexual health and relationships.
  

Sexual Problems Advice:

• British Association for Sexual and Relationship Therapy
  Information service that also provides a list of therapists.
  Tel: 020 8543 2707
  
  
• Sex Therapy Online
  Offers advice and treatment of range of sexual problems.
  
  
• Sexual Dysfunction Association
  Provides information on a range of sexual problems
  Helpline: 0207 486 7262