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A 35-year-old member asked:

why could i have a craving for blood?

1 doctor answer1 doctor weighed in
Dr. Kelty Baker
Hematology 28 years experience
Weird cravings: The most common cause of unusual cravings and fatigue is iron deficiency. Please ask your physician to check both your iron and your thyroid levels if they haven't done so already.

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Similar questions

A 45-year-old member asked:

What is a blood group?

2 doctor answers3 doctors weighed in
Dr. Carolyn Thompson
Obstetrics and Gynecology 28 years experience
Blood type: "blood group" and "blood type" are the same thing. Blood types are as follows: a, b, o, and ab. There is also the rh factor, which is + or -. Blood types are inherited traits. Worldwide, o+ is the most common type, and ab- is the rarest type.
A 32-year-old member asked:

Can your blood group affect your health?

1 doctor answer1 doctor weighed in
Dr. Nasfat Shehadeh
Hematology and Oncology 29 years experience
No: No.
A 37-year-old member asked:

Does "sc blood group" exist?

1 doctor answer1 doctor weighed in
Dr. Mehdi Moezi
Medical Oncology 31 years experience
SC Hemmoglobin: Yes it is not a blood group you may mean sc disease which is hemoglobinopathy and combination of sickcle and hemoglobin c and may need treatment an dhematology observation. Ask for referral to hematology.
A 33-year-old member asked:

How could blood groups originate?

1 doctor answer2 doctors weighed in
Dr. Ed Friedlander
Pathology 44 years experience
Genetic drift: There is no obvious selective advantage for A, B or O in nature, and these seem to be the result of random mutations. Some of the African blood groups, famously Duffy Negative, arise in response to selective pressure because it gives immunity to the local form of malaria. You may find this site helpful http://sandwalk.blogspot.com/2007/02/abo-blood-types.html
Whittier, CA
A 18-year-old female asked:

I've been craving wet dirt lately but my blood is normal and everything is okay?

1 doctor answer1 doctor weighed in
Dr. Silviu Pasniciuc
Internal Medicine 27 years experience
Suggesting pica: Pica, defined as an appetite for non nutritive and unusual substances has been traditionally described in iron deficiency. Specific diagnosis criteria have been delineated and can be found on different websites, including Wikipedia.

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Last updated Jul 27, 2019

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