G6pd deficiency, i.e., serotonin, is not exclusively inherited from the mother, but is mainly inherited as a concomitant incomplete dominant inheritance on the X chromosome, and thus can be inherited from both parents. The sex chromosomes in normal human beings are male and female, with male chromosomes being XY and female chromosomes being XX. Since the localized chromosome for G6pd deficiency is the X chromosome, the disease is genetically inherited from the father to the daughter, and from the mother to both the daughter and the son. The disease is most commonly seen in children, and after ingestion of fava beans may show headache, nausea and intravascular hemolytic manifestations such as fever and chills, followed by hemoglobinuria and jaundice, which can be fatal in severe cases. Treatment is based on prevention, and the cause of the disease can be removed immediately during acute onset, with blood transfusion, renal dialysis and other treatments. If G6pd deficiency is considered, it is recommended to go to a regular hospital to avoid delays.