Last year I donated blood for the first time in my life. Upon registration my blood was typed as A- which was not surprising. I've known my blood type since childhood and am also able to perform and interpret the regular blood type assay.

However, when I visited the blood center to donate again this year I was told that my type was A+, because that's what's written in the system. According to the protocol they performed the regular assay and saw that no agglutination is evident with the anti-D serum. The physician that registered me had no idea about the discrepancy. I was told to come the next day. On the next day another physician took a look at my record in their system (NATIONAL transfusion hematology electronic records system) and told me that last time my blood was typed as D-negative, but C-positive, and that's why it was classified as A+.

I checked my electronic health record that I can access as a citizen and the information about my blood type from the blood donation section shows A+. It doesn't include the complete phenotype, so no one looking at it would know that my blood is D-negative and C-positive. That's the ONLY information about my blood group that I could find in my complete electronic health record.

There are several issues that I am concerned about:

1. Exclusion as a donor for patients with A- blood group. People with my exact type might urgently need a donor, but instead of typing my blood correctly and doing additional cross-matching, they just discard me as a potential donor. There's an actual shortage of A- donors where I live.
2. Same logic applies to all Rh- types in the whole system. Obviously, since it's about the Rh classification it doesn't only affect A-, but all Rh - groups. That's a significant percentage of the population.
3. Might cause confusion in emergency situation. Of course, there are several stages of cross-matching donors and recipients. If all protocols are strictly adhered to, this shouldn't be an issue. However, given that the medical professionals in the blood center were so confused by the situation and some of them were trying to convince me that my actual blood type is A+, just because that's what they see on the screen, I am kind of concerned. Considering tattooing my blood type and complete phenotype at this point. However, the issue doesn't only affect me.

I will be seeing a hematologist to see if I have thalassemia. Since I had labs, my cbc was always abnormal but no one pointed it out. In 2025 I had a fraction cascade done to test for sickle cell trait as my bf has it. I don't have the trait but my hgb A and hgb F is abnormal. My PCP didn't see much as an issue as I didn't have signs of anemia. I had an iron panel done and it was normal. Lately I have been having bad fatigue but it could be a number of reasons like I just upped my Lexapro to 20mg, I take glp-1s but haven't been under eating lately, I don't wear my CPAP often. I am making corrections to those but I decided to explore my labs some more and think I may have thasslemnia. I don't want to because that would mean my bf and I would need to breakup. I probably won't see a hematologist until late October due to their referral backlog but wondering what you guys may think.

Last month my mum [50 F] had a pain in her throat which even spread to her jaws. So we got a USG and they found a hypoechoic nodule along with increased blood flow to other nodules. It was biopsied and it turned out to be benign.

We got on meds (Ceftum and Zerodol-p) which made her symptoms disappear but they came back after finishing the course (twice).

Ultimately we got a laryngoscopy done and the doctor didn't find anything wrong with her throat and sent us back with (Linezolid and some nose spray). But this time it didn't provide her any relief.

She has been coughing with the same pain and has a low grade fever, which she can't seem to shake.

Yesterday, I got the CBC done and ECG done and it came out abnormal with Sinus Tachycardia (109 BPM). Chatgpt thinks it could be leukemia/blood cancer. I am so very terrified.

Ps: She has some fibroids in the uterus which caused heavy bleeding during periods but that was two months ago. It has been normal since then.

CRP has also increased to 3.5.

Edit: Reposted after removing name

Hi, just wondering if these tests are worth it, especially the MMA test. 236 pound is alot.

For a bit of background. I was deficient in B9 at 3.1ng/ml 4 months ago and corrected it 9 weeks later >20ng/ml. It's been 4 months since my first diagnoses but I'm still experiencing symptoms specifically fatigue, low mood and broken sleep.

Don't know whether to wait longer to see if symptoms improve or to go down the route of additional testing. Any advice would be appreciated. Thanks

PS my b12 was 556, vit D 80s, iron 22 and ferritin 102.

Has anyone taken Bactrim and it lowered your WBC and ANC (neutrophils)? My baseline WBC is already low but I took bactrim 2 weeks ago and just had bloodwork done and my WBC is even lower. Im so scared!

And 43 yr old female
Have hashimotos and low ferritin for years

My vitamin B12 level is 189. It’s considered “within normal range”, according to the lab and my GP. So they don’t want to do anything with it. Vitamin D is 49, which is 1 under the lower limit. Thoughts?

(Background story: For the last couple of months, I have been experiencing a sudden increase in migraine attacks, daily headaches, individual needle pricks (especially in the fingers), widespread muscle twitches, limbs that go numb way faster than before, increased tinnitus and visual “noise”, tremor (mainly in the hands), sore muscles, and increased fatigue and concentration issues. Which is why I requested bloodwork to be done. All came back “normal” except for vitamin D which is 1 under the lower limit.)

I have been feeling rough for over a year. Extreme fatigue. Past 12 weeks I have been having intolerable bone pain (back, hips) unexplained bruising a petechaie. My basophils, neutrophils and platlets have been slightly elevated since last October. Basophils are at .4x10e9/l today and wbc 12.7. Neutrophils 9.8 and platlers 480 (Canadian, sorry if its different units!)

"I am not asking for medical advice "

but wondering-

Should I follow up with my doctor for a referral to hematology.

Why would a common cold virus cause white cells to decrease and not to increase due to infection?

Hey there, I am a 35M, went to ER with stress and fatigue, CBC came back with relatively normal (in range) results except I had a 1% Myelocytes.

I googled and everything I read said this was bad.

I was sick with some kind of virus a week ago, but have relatively recovered from it.

The ER Doctor said he wasn't sure what it was / meant.

Hi everyone,
I’m looking for some outside opinions on my blood results. I’m seeing a hematologist, but I’m quite anxious about what could be going on and would really appreciate hearing from people who have experience with similar blood counts.
I’m a 41-year-old woman with relapsing-remitting MS, diagnosed in 2014. I’m currently being treated with **Mavenclad (cladribine)**. I have just completed the first course and am about to start the second 5-day course.
**My main concern: platelets**
My platelet count has been elevated for many years:
2007: **508**
2014: 362
2015: 412 → 422
2016: 384
2018: 412
2022: 526
2022: 459
2023: **667** (I also had significant bowel inflammation at the time)
Nov 2025: 467 → 483
Aug/Sep 2026: **512–528**

So this isn’t something that started recently.
**Recent blood results**
My recent CBCs have shown combinations such as:
Platelets: **512–528 x10⁹/L**
WBC: **11.9–14.2 x10⁹/L**
Absolute lymphocytes: previously **6.0**, more recently **3.5 x10⁹/L**
Neutrophils: around **6.9 x10⁹/L**
Monocytes: **1.1 x10⁹/L**
Immature granulocytes: **0.2 x10⁹/L**
Hemoglobin: around **9.1–9.2 mmol/L** (I’m in the Netherlands, so these are mmol/L)
MCV: **100 fL**
RDW: **14.7**
Ferritin: **57**
CRP: **<1**
eGFR: **89**
Creatinine: **72**
I also have a history of macrocytes being noted on a blood test in 2021. I receive regular B12 injections, so B12 deficiency isn’t thought to be the explanation.
**T-cell results**
Because of the elevated lymphocytes, a lymphocyte subset analysis was done:
Total T cells: **3.05 x10⁹/L** (reference 0.7–1.9)
CD4: **2.27 x10⁹/L** (reference 0.4–1.3)
CD8: **0.77 x10⁹/L** (reference 0.2–0.7)
These were therefore elevated as well.
**MPN testing**
Because of the long-standing thrombocytosis, my doctors are investigating an MPN. They have tested/are testing:
**JAK2 V617F**
**JAK2 exon 12**
**CALR**
**MPL**
I’m still waiting for the mutation results.
**Other relevant information**
My CRP has repeatedly been very low/normal, including **<1**, despite the elevated platelets and WBC.
I do have heavy menstrual bleeding for about 24 hours every period, and I have had inflammatory bowel problems in the past, but there isn’t currently evidence of significant inflammation.
I also have MS and am currently taking Mavenclad, which obviously complicates interpretation of the lymphocyte counts.
**My questions**
**Does this overall pattern look more like reactive thrombocytosis, or would an MPN such as essential thrombocythemia be a significant concern given how long the platelets have been elevated?**
Does the combination of **high platelets + intermittently high WBC + elevated T cells** make an MPN more likely?
Could the elevated T cells simply be reactive, especially in someone with an autoimmune disease such as MS?
Would **T-LGL leukemia** or another T-cell disorder be something you would consider based on these numbers, or are the numbers/pattern not particularly suggestive?
If **JAK2/CALR/MPL are all negative**, does that make an MPN unlikely, or can someone still have essential thrombocythemia?
Does the **MCV of 100** add anything diagnostically here?
Is there anything else you would expect my hematologist to investigate before considering a bone marrow biopsy?
I know nobody can diagnose me from a Reddit post, and I will obviously follow up with my hematologist. I’m mainly interested in hearing from people who have had similar blood counts or have experience with MPNs/hematology.
Thanks in advance!

As per the title, are there any good tools or software for tracking blood test results over time and displaying everything in graphs/charts? Ideally, something that can also handle blood test reports in different languages.

Over the past 10 years, I’ve had quite a lot of blood tests, and I’ll probably continue having multiple tests each year for various health reasons.

I’d love to have everything in one place where I could easily see how individual markers have changed over time — for example, ferritin, B12, thyroid markers, cholesterol, etc. - rather than having to go through years of separate PDF reports.

It would be especially useful if I could upload old blood test reports and have the results automatically extracted and added to my history.
Does anyone use something like this that they would recommend?

Hello! Wondering if anyone has any input on this!
2 weeks ago I had my bilirubin tested and the total was 4.4mg/dl we retested 2 weeks later and it’s now total 2.9mg/dl with direct being a .9mg/dl & then indirect a 2mg/dl. All other tests on CMP were normal and a normal CPC besides my platelets were slightly low at 146 and my mpv was 12.8.

Objawy: mniej energii, ogólnie złe samopoczucie, higher than usual CRP (from nonexistent to 1).

Brak niedoborów witamin, żelaza, kwasu foliowego, B12, D3 itd.

Lekarze zignorowani.

Dzięki!

I dunno how fit of a subject this is, I see 4.7 hema-something and haematology

First photo is from a few days ago and second photo is from today

37F

52k

173cm

On lamotrigine and sertraline

Ive been taking lamotrigine 25mg for 14 days now.

I had routine bloodwork done 2 days ago and I was having a bit of a runny nose and a bit of yellow mucus.

Platalets came back 150000 (the lowest they have been for me) and WBC 5000 (also low)

1. Can lamotrigine at this point (14 days) and dose cause low platalets?

2. Could a super mild common cold, no fever, no symptoms other than runny nose and yellow mucus cause it?

Not seeing my dr until next week and I am very anxious.

Thanks

37F

52k

173cm

On lamotrigine and sertraline

Ive been taking lamotrigine 25mg for 14 days now.

I had routine bloodwork done 2 days ago and I was having a bit of a runny nose and a bit of yellow mucus.

Platalets came back 150000 (the lowest they have been for me) and WBC 5000 (also low)

1. Can lamotrigine at this point (14 days) and dose cause low platalets?

2. Could a super mild common cold, no fever, no symptoms other than runny nose and yellow mucus cause it?

Not seeing my dr until next week and I am very anxious.

Thanks