B-cell deficiencies

B-cell deficiencies occur when the immune system's B cells, which produce antibodies to fight infections, are defective or absent. Without enough functional B cells, the body struggles to recognize and fight bacteria and viruses effectively, leading to increased infections or recurrent illnesses. These deficiencies can be inherited or acquired and may require treatments like antibody replacement therapy or antibiotics to help protect against infections. Proper diagnosis and management are important to reduce health risks associated with this immune system impairment.