In general, pathological jaundice does not go away on its own. Most pathological jaundice has a cause, and the causes of pathological jaundice are all very complex, such as infection, erythropoiesis, genetic factors, congenital malformations of the liver or biliary tract, and abnormal red blood cell morphology can all lead to pathological jaundice. In conclusion, there are many causes of pathological jaundice, and patients diagnosed with pathological jaundice need to find the cause of the jaundice, and after the cause of the jaundice is clearly identified, intervention and treatment of the jaundice is definitely needed, so pathological jaundice does not heal on its own. Urinary tract infection is one of the common causes of pathological jaundice. In newborns and infants, the urethral orifice is relatively short, so once urinary tract infection occurs, the first symptom of the child may be jaundice, but not the more common clinical symptoms of urinary pain, frequency, urgency, etc. Therefore, parents of children with jaundice caused by urinary tract infection cannot detect it, nor can they make a clear diagnosis. Parents should bring their children to the hospital for medical consultation. Hypothyroidism is also a common cause of pathologic jaundice. Most pregnant women have hypothyroidism during pregnancy, and some of the anti-thyroid medications taken by pregnant women with hypothyroidism may have an effect on the infant, who may have hypothyroidism after birth. For jaundice caused by hypothyroidism, clinical treatment should focus on the hypothyroidism before the jaundice in the child subsides.