<s>[INST] My daughter is 2 years old. Many times during the day I hear her knee popping. My mom s knee used to pop out of joint when she was a kid and she had to have surgery to correct it. It doesn t seem to bother my daughter at all, but wondering if it s worth checking out?? [/INST] Hi, Noted the history about your 2-year-old daughter having popping knee, although she has no symptoms, your Mother had popping knee for which surgery was needed. There can be a knee problem that needs a thorough clinical examination, MRI and other relevant tests. Take an opinion of an Orthopedic Surgeon to get a final diagnosis. If advised to wait you have to wait. If the investigations indicate then surgery may be needed. Get it done then. It is better to consult the Specialist as soon as possible to avoid further complications as your daughter is only 2 years old and can have permanent changes which are difficult to treat in later part of life. Hope I have answered your query. Let me know if I can assist you further. </s>