Short-term Intravenous Iron Isomaltose Anhydride for IDA

Inclusion Criteria: * Age \> 14 years; * Sign and date the "informed consent form" Exclusion Criteria: * Pregnant or lactation; * Drug abuse, including but not limited to opioids, amphetamines, ice, ketamine, etc.; * History of anaphylaxis to oral or intravenous iron; * Nervous system diseases such as peripheral neuropathy, mental illness; * Other conditions that the investigator deems are not suitable for the study, such as deafness, Parkinson's disease, communication disorders, etc.; * Participated in other clinical trials during the first three months of the study.