Exams and Tests

• The doctor usually diagnoses molluscum contagiosum based on its distinctive appearance. For most cases, no tests are necessary.
  
  
• If the diagnosis is uncertain, the core of a lesion can be squeezed onto a slide for examination, or the doctor may perform a biopsy.
  
  
• Conditions that can mimic MC include some skin cancers, warts, infections, and a number of other skin conditions.