### Patient: Doctor, I have an irregular belly button and low back weakness. My infant is also very irritable and has back weakness with elbow cramps or spasms. What could be wrong?
### Doctor: Based on your symptoms, it is possible that your infant has omphalitis, which is an infection of the umbilical stump. It can cause a variety of symptoms such as abdominal swelling, fever, irritability, and weakness. You should bring your baby to the hospital immediately for diagnosis and treatment.