You could have a urinary tract infection or a kidney infection. It could even be dehydration. Did it define which ones you had?
This is just a list of them, and every lab uses different ranges, but does your list them out this way?
Normal Ranges for Immature Granulocytes:
Neutrophils – 40–80% (2.0–7.0×10 9 /l)
Lymphocytes – 20–40% (1.0–3.0×10 9 /l)
Monocytes – 2–10% (0.2–1.0×10 9 /l)
Eosinophils – 1–6% (0.02–0.5×10 9 /l)
Basophils – < 1–2% (0.02–0.1×10 9 /l)
https://healthmatters.io/understand-blood-test-results/immature-grans-abs
How high were yours? Sometimes some of these can be slightly elevated with dehydration.