If this is something new for you or is associated with symptoms such as bloating, acid reflux or abdominal pain, discuss it with your physician. 882-7000 to make an appointment with a University of Missouri Health Sciences Center physician. He recently got a very short hair cut, and now a section of his hair is growing in black. We searched various resources to find a cause for change of hair color in one isolated location and found no explanation. But at the same time, we did not find this listed as a sign or symptom of a disorder associated with the scalp or hair follicle.
Melanin determines the color of one's skin and hair.
A different amount of melanin in that area probably caused the change in hair color. You should, however, mention it to your son's healthcare provider on his next routine visit. 882-7000 to make an appointment with a University of Missouri Health Sciences Center physician. She says her legs at times produce a liquid that is not sweat. It sounds like the kind of thing that happens after a burn.