Neutrophils 78 %

What 78 % means

78% is clearly above the typical adult range of about 40–70% and usually means your body is actively responding to something.

A neutrophil share this high most often reflects an active bacterial infection, significant inflammation, or the effect of steroid medication. Under stress, the bone marrow shifts output toward neutrophils and releases stored ones into the blood, raising both their number and their percentage. What it means for you depends heavily on your total WBC count and how you feel: the same value reads differently in someone fighting pneumonia versus someone on a prednisone taper.

Most US laboratories consider roughly 40% to 70% of white blood cells to be neutrophils in healthy adults, though cutoffs vary slightly by lab (some use ranges such as 45%–75%).

Common causes

• Bacterial infections such as pneumonia, urinary tract infection, skin infection, or appendicitis
• Corticosteroid medications
• Recent surgery, significant injury, or burns
• A flare of inflammatory disease such as rheumatoid arthritis, gout, or inflammatory bowel disease
• Heavy smoking
• Heart attack or other acute tissue damage
• A strong physical stress response

Symptoms that can go with it

• Fever
• Pain localized to one area, such as the chest, abdomen, or a wound
• Cough or shortness of breath
• Burning with urination
• Redness or swelling of the skin
• Fatigue — or no symptoms if the cause is a medication

Sensible next steps

1. Contact your healthcare provider soon, particularly if you have fever or localized pain
2. Tell them about any steroids or recent illness, surgery, or injury — these often explain the result
3. Expect a repeat CBC once an illness resolves to confirm the value returns to normal
4. If you develop high fever, severe pain, or rapidly worsening symptoms before you are seen, seek urgent care
5. Discuss whether any further tests are needed based on your symptoms