High neutrophils and low lymphocytes can mean your body is under severe stress or fighting an infection. A neutrophil-to-lymphocyte ratio (NLR) shows how sick you are and what treatment you may need.

Intraepithelial lymphocytosis is an elevated white blood cell count in your gastrointestinal tract. It can be a sign of celiac disease, Crohn’s disease, or other gastrointestinal conditions. The ...

DEAR DR. ROACH: I am a female and almost 75 years old. My vital signs are always normal, and I am active, but slightly overweight. I get quarterly blood draws, and every reading is in the normal range ...