If your 70-day-old baby cries after breastfeeding, he or she may have oral problems, choking, or breast milk allergy, and you should consult a doctor to find out the cause of the problem. 1. Problems with the mouth: If there are mouth ulcers, thrush, or a sore throat caused by a cold, the baby will cry when eating milk. 2. Choking: If you often choke on milk, you will be afraid and refuse to take milk, and you will cry when taking milk. 3. Breastfeeding allergy: The food components that the mother eats will pass through the breast milk and be eaten by the child, and she will have an allergic reaction to these food components, which will make her uncomfortable and refuse to breastfeed. Mothers should pay attention to observe which foods they eat when the child will cry, if you suspect a certain food allergy, try to avoid this food. In addition to the above factors, it cannot be ruled out that it is caused by other factors. It is recommended that the patient go to the hospital for examination as soon as possible, and the doctor will give targeted treatment after clarifying the cause of the disease.