The Absolute Basophil Count (ABC) is a crucial parameter in a complete blood count (CBC) that measures the number of basophils, a type of white blood cell, in a person’s bloodstream. Basophils are a relatively rare component of the immune system and play a role in allergic reactions and inflammation. While elevated basophil counts are relatively uncommon, they may be observed in certain allergic conditions, chronic inflammation, or myeloproliferative disorders. Monitoring the ABC helps healthcare professionals diagnose and manage various health conditions and provides valuable insights into the immune system’s response to allergies and inflammation.