High neutrophils and low lymphocytes can mean your body is under severe stress or fighting an infection. The neutrophil-to-lymphocyte ratio (NLR) helps doctors understand how sick you are and what ...

Lymphocytosis occurs when a person has too many lymphocytes, a type of white blood cell. Symptoms include swollen lymph nodes. It can indicate an underlying health problem, such as an infection, ...

Atypical lymphocytes are types of white blood cells that a person’s immune system produces. They help fight infections and diseases. High levels of atypical lymphocytes may indicate health issues.

Lymphocytosis means you have a higher-than-usual lymphocyte count, often defined as more than 3 to 4 billion cells per liter of blood. Lymphocytes are white blood cells that help fight disease. Smudge ...