Blood Donation

A person when voluntarily gives his or her blood to be used for patients in need of blood transfusion is called blood donation. Before donating blood, the donor is screened for all possible diseases like HIV and hepatitis to prevent transmission. The donor's hemoglobin level is also tested to know if it is safe for the person to donate blood.

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How long should I wait to donate blood after getting a tattoo?

Query: Hi doctor, I got a tattoo before five months. A blood donation drive is going to happen by next month. Am I eligible to donate blood? How long should a tattooed person wait to donate blood?  Read Full »

Dr. Prakash H Muddegowda

Geriatrician, Hematologist, Pathologist

Answer: Hi, Welcome to Based on your query, my opinion is as follows: If it is from a professional tattoo artist and the needle was changed, then you can donate after a week. We are only worried about allergic reactions. If you are not sure, then deferral period is usually six months. After tha...  Read Full »

Does donating blood affect blood test results?

Query: Hi doctor, I have a few queries about blood donation. I am traveling abroad for joining a new company there and I will have medical tests, which includes blood tests for all lipid profile, cholesterol, liver tests, hemoglobin, WBC, RBC, platelets, etc., and for HIV, hepatitis, etc. I am a regular bl...  Read Full »

Dr. Sugandh Garg

Diabetologist, General Medicine Physician, Internal Medicine Physician, Toxicologist

Answer: Hello, Welcome to Blood donation will not affect your blood reports. However, for blood donation your medical reports that is overall health should be good and that includes all tests to be normal irrespective of blood donation. For what ailment are you taking the hormone testosterone...  Read Full »

Is my low hemoglobin related to periods or blood donation?

Query: Hi doctor, I am a 21 year old female. I have donated blood twice (in December and March respectively) and my hemoglobin level was 12.1 g/dL. Yesterday, I had gone to donate blood. But, I was not able to do so because of my low hemoglobin level (9.5 g/dL). I am just wondering if the drop in my hemog...  Read Full »

Dr. Sabita Laskar

Obstetrician And Gynaecologist

Answer: Hi, Welcome to Hemoglobin (Hb) level does not drop down during your periods unless you have abnormally excessive bleeding. It could be a result of frequent blood donation. Maybe your body did not get enough time to regenerate the lost blood. So, give some time for your body to rege...  Read Full »

My arm still feels tired after donating blood. What is the reason?

Query: Hello doctor,So, last week I donated blood in a blood-letting in my university. The day after the donation, a bruise appeared in the punctured area, and it is a bit painfull. After doing cold and hot compress, the pain in the area disappeared but my donating arm still feels tired. What could be the ...  Read Full »

Dr. Kiran Anaparthi

Family Physician, HIV AIDS Specialist

Answer: Hi, Welcome to First, coming to blood donation, you have done a very good thing. You saved one life. Secondly, the bruise may be due to puncture of the vein (double puncture) during needle insertion and it will cause pain and leakage of blood (causing bruise) and this will be healed fa...  Read Full »

Can I donate blood if my Hb value is high?

Query: Hello doctor, I am 34 years old. I went to donate blood today. But, the hospital rejected me as my Hb value is 16.9. Is this level abnormally high? Do I need to get any tests done?  Read Full »

Dr. Parth R Goswami

Family Physician, General Practitioner, Hematologist, Pathologist

Answer: Hello, Welcome to Yes, your hemoglobin value is high and needs to be investigated. Let me know if your hematocrit values were checked. If it is high as well, the condition is polycythemia. The cause for polycythemia may be secondary to chronic hypoxia due to a chronic heart failure...  Read Full »

Can a person with high blood pressure donate blood?

Query: Hello doctor, Can a person suffering from high blood pressure donate blood?  Read Full »

Dr. Yashas Saipangallu

Family Physician, General Practitioner

Answer: Hi, Welcome to respect your concern on blood donation. Definitely yes. A person who is suffering from hypertension (high blood pressure) can donate blood; provided his blood pressure is normal at the time of blood donation and he must not be suffering from other associated unt...  Read Full »

Can a person with high CPK donate blood?

Query: Hi doctor, Can a person with persistent high creatine phosphokinase (CPK) count of 13000 - 17000 IU/L donate blood? Does blood with high CPK count useful for blood transfusion?  Read Full »

Dr. Nagaraj Patil

General Medicine Physician, General Practitioner, Internal Medicine Physician, Diabetologist

Answer: Hi, Welcome to Creatine phosphokinase is an enzyme that is normally present in muscles, heart, brain, etc. Blood donation guidelines do not specify anything related to higher CPK levels and blood transfusion. CPK is released into blood stream following vigorous exercise even in a health...  Read Full »

How to correct excess red blood cells in the body?

Query: Hi doctor, I have excess red blood cells in my body. Recently, I had blood checkup, and it was 16.9% as per the report. Kindly advice to reduce it. I am 27 years old. I have little chest pain too when I squeeze my chest with a pressure through shoulders.  Read Full »

Dr. Sagar Ramesh Makode

Cardiologist, General Medicine Physician, Internal Medicine Physician, Family Physician, General Practitioner

Answer: Hello, Welcome to It is not very much elevated, but borderline and not a matter of worry. Do you smoke? If yes, then needs to stop it. Do you have any breathing difficulties? For reducing excess red blood cells, we need to find out the cause for it like smoking and needs to stop if any....  Read Full »

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