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Keywords:

  • Methemoglobinemia;
  • methylene blue;
  • laparoscopy;
  • infertility

Methylene blue is used to check tubal patency during laparoscopy. A case of methemoglobinemia which was induced by methylene blue is presented. Methemoglobinemia is usually treated with methylene blue; however, in patients with glucose-6-phosphate dehydrogenase deficiency, methylene blue can induce methemoglobinemia.