I wouldn't pursue anything further with this if you don't have frequent infections or any other symptoms. Some people just run on the lower end, and that's fine.
Any other possible causes of low WBC count? am hispanic 23F, 5'1, 105 lbs.Symptoms: some fatigue, occasional night sweats (maybe 1-2x/every 2wks for ~4-5 mo) that are drenching and wake me up, palpable non-tender L posterior auricular lymph node, submental, and R posterior cervical lymph nodes (but have been told by a otolaryngologist in a class these are probably just shotty/only palpable because I am thin), I mainly just saw a doctor to establish care after moving and for a physical because it had been a while.Medical hx: childhood asthma, internal hemorrhoids ongoing on/off for 4 yrs dx by colonoscopy, iron deficiency without anemia 2 yrs ago (likely d/t vegetarian diet)Current medication is Nuvaring. I drink max 2 drinks/wk, I do not smoke, and I do not use any drugs.Lab results:-CBC w/Diff: Repeated 3x over 2 months, same results. Results here of manual diff:WBC 3.1 10e3/uL 3.9 - 11.2 10e3/uL LRBC 4.9 10e6/uL 3.7 - 5.2 10e6/uLHemoglobin 12.1 g/dL 11.3 - 15.1 g/dLHematocrit 38 % 34 - 45 %MCH 24.8 pg 25.7 - 34.1 pg LMCHC 32 g/dL 32 - 36 g/dLMCV 78 fl 79 - 98 fl LRDW 13.7 % 11.0 - 14.9 %Platelet Count 180 10e3/uL 165 - 366 10e3/uLMPV 12.2 fl 9.0 - 11.8 fl HAutomated Nucleated RBC 0 %/100 WBCBand Neutrophil % 1 % 0 - 1 %Segmented Neutrophil % 43 % 43 - 74 %Lymphocyte % 49 % 17 - 46 % HMonocyte % 6 % 4 - 13 %Eosinophil % 1 % 0 - 6 %Basophil % 0 % 0 - 1 %Absolute Neutrophil (Segs and Bands) 1.36 10e3/uL 1.90 - 7.80 10e3/uL LAbsolute Lymphocyte 1.52 10e3/uL 0.90 - 3.20 10e3/uLAbsolute Monocyte 0.19 10e3/uL 0.26 - 0.86 10e3/uL LAbsolute Eosinophil 0.03 10e3/uL 0.03 - 0.52 10e3/uLAbsolute Basophil 0.00 10e3/uL 0.01 - 0.10 10e3/uL LRBC Morphology Comment Present RBC: Manual smear Review PerformedPoikilocytosis 1+ AOvalocytes Present ATarget Cells Present A-Other labs:normal CMP, negative ANA screen, negative rheumatoid factor, normal Vitamin D, normal B12, normal Folate, negative for hep B & hep C, negative TB skinMy question:My Dr. did an e-consult with hematology, and they were dismissive I think because I am young and relatively healthy and all of the above possible explanations were negative/normal. They said that it was likely just low WBC due to genetic variation. I have never had a low WBC count in the past (last cbc w/diff in 2020 was normal) and no one in my family has a low WBC count. I understand that it still could potentially be a "normal"/ genetic variant low wbc count, but are there any possible explanations for my results that have not been explored above and should I push to investigate or should I just wait and see if I start getting infections or other symptoms like they said I should? I am a student in a healthcare field and could just be over-analyzing and worried for no reason!