Are there risks in donating blood?

An adequate blood supply is  vital in treating patients in such  situations as emergency care, a  planned surgery or for those undergoing treatments for  illnesses such as cancer or sickle  cell anemia.  

Nearly 16 million blood components are transfused each  year in the United States, according to the American Red  Cross. 

Blood donors are generally  required to be in good health,  weigh at least 110 pounds and  be at least 17 years old. Donors  will be screened when they go to  donate and will be informed of  any additional requirements. These may vary depending upon  if they’re donating whole blood,  platelets, plasma or red blood  cells. 

Donating blood is a safe procedure. The majority of  healthy adults can donate a pint  of blood with little or no effect.  The body replaces lost fluids in a  few days, and the lost red blood  cells are replenished in around  two weeks. Minor side effects  with blood donation may include  bruising, dizziness, feeling faint  or nausea. 

If you desire to donate blood and  have concerns, speak to the  individuals at the blood donation  location or consult with your  health care provider in advance.

Dr. Bala Simon is an associate professor in the Department of Family and Preventive Medicine in the College of Medicine at the University of Arkansas for Medical Sciences.