The medical abbreviation H/O stands for History Of. It is commonly used in medical records to indicate a patient’s past medical history. For example, if a patient has a history of diabetes, it might be written as H/O Diabetes.
This abbreviation helps healthcare providers quickly understand a patient’s medical background, which is crucial for making informed decisions about their care. It is important to note that H/O does not stand for heart murmur, overheated, or head oriented.