Six-year-old Ayden Palmer has already battled through what seems like a lifetime of pain.
When he was three years old, he suffered a stroke that paralyzed the left side of his body. Last year, he battled brain cancer.
Now Ayden, from Prosper, Texas, needs a life-saving bone marrow transplant as he fights a blood disorder, reported Fox 4.
Ayden's best hope of finding a match is within his own ethnic group, but doctors say there are too few minority donors on the national registry and that he has just a 25 percent chance of finding a perfect match.
Ayden Palmer, six (left and right), from Prosper, Texas, suffered a stroke at age three that paralyzed the left side of his body and battled brain cancer last year. Now he needs a life-saving bone marrow transplant as he fights an inherited blood disorder
Ayden (pictured) has sickle cell disease, which causes red blood cells to have a crescent, or sickle, shape instead of the normal round shape
Ayden has been undergoing blood transfusions for several hours each week at Children's Medical Center of Dallas to help treat his sickle cell disease.
Sickle cell disease is an inherited disorder that affects the way in which red blood cells circulate oxygen through the body.
The disorder causes red blood cells to have a crescent, or sickle, shape instead of the normal round shape.
Sickle cells die prematurely, which causes a shortage of red blood cells. When they do pass through blood vessels, they stick together and block vessels, preventing blood from properly flowing.
In December, Ayden underwent brain surgery to improve blood flow, according to Fox 4.
It's unclear how well he's recovered from his past stroke and brain cancer battles.
'He's known nothing but pain, and he's immune to pain. That's what I see,' Ayden's mother, Tut Palmer, told the station.
Signs of sickle cell disease usually appear in the first year of life and include painful swelling of the hands and feet, fatigue, shortness