Risk factors

Risk factors for Stevens-Johnson syndrome may include:

  • viral infections such as herpes, hepatitis, viral pneumonia or HIV
  • a weakened immune system as a result of HIV or AIDS , autoimmune conditions, such as lupus , or certain treatments, such as chemotherapy and organ transplants
  • a previous history of Stevens-Johnson syndrome if the syndrome was previously caused by medication, you're at risk of it reoccurring if you take the same medication again, or medications from the same family of medications
  • a family history of Stevens-Johnson syndrome if a close family member has had the syndrome, your risk of getting it may be increased

Specific genes have also been identified that increase the risk of Stevens-Johnson syndrome among certain groups of people.

For example, Chinese people with the HLA B1502 gene have experienced Stevens-Johnson syndrome after taking carbamazepine, and allopurinol has also triggered the syndrome in Chinese people with the HLA B1508 gene.

Content supplied by the NHS Website

Medically Reviewed by a doctor on 21 Dec 2018