What are the reasons for a 1 year old baby crying in the middle of the night?

Many reasons can lead to 1-year-old baby crying in the middle of the night, such as diarrhea, cold, abdominal pain, fever, lack of trace elements, shock, etc. It is recommended that parents comfort their baby when crying to increase their child's sense of security. If it is ineffective, it is recommended to see a doctor in time and find out the cause after symptomatic treatment.