Complications of mumps

The complications of mumps are:

• Orchitis
  • Most common extra salivary manifestation
  • Unilateral in 75% cases
  • Characterised by testicular swelling and tenderness
• Pancreatitis
  • characterised by upper abdominal pain, nausea, vomiting
  • Leading cause of pancreatitis in children
• Ovaritis
  • Characterised by lower abdominal pain and enlarged ovaries
• Myocarditis
• Thyroiditis
• Hepatitis
• polyarthritis
• Neurologic complications
  • meningitis
  • encephalitis
  • nerve deafness – one of the main infectious causes of sensorineural deafness
  • facial pasly
  • cerebellar ataxia
  • transverse myelitis

Mumps infection in pregnancy can cause spontaneous abortion. Mumps causing congenital anomalies have not been described.