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  • Toxic shock syndrome

    Find out about toxic shock syndrome (TSS), including what the symptoms are, when to get medical help and how it is treated.

  • Tourette's syndrome

    Find out about Tourette's syndrome, a condition that causes a person to make involuntary sounds and movements called tics. Read about the symptoms and causes, plus find out how it's diagnosed and treated.

  • Tooth decay

    Find out about tooth decay, including the symptoms, when to see a dentist, how it’s treated and how it can be prevented.

  • Thoracic outlet syndrome

    Find out about thoracic outlet syndrome, where nerves or blood vessels near the top of the ribs get squashed. It's often linked to having an extra rib (cervical rib).

  • Temporomandibular disorder

    Read more about temporomandibular disorder (TMD), which is a problem affecting the chewing muscles and the joints between the lower jaw and the base of the skull.

  • Tay-Sachs disease

    Tay-Sachs disease is a very rare and usually fatal genetic disorder that causes progressive damage to the nervous system.

  • Dysphagia (swallowing problems)

    Find out more about dysphagia, where you have problems swallowing.

  • Sudden infant death syndrome (SIDS)

    Sudden infant death syndrome (SIDS) – sometimes known as 'cot death' – is the sudden, unexpected and unexplained death of an apparently healthy baby.

  • Stretch marks

    Find out about stretch marks, including where, when and how you get them, what causes them, and how they can be treated and prevented.

  • Stevens-Johnson syndrome

    Find out about Stevens-Johnson syndrome, including what causes it, what the symptoms are and when to get medical help.