Calcium deposits on a person's brain can be serious, according to GlobalMD, and can even be life-threatening. Calcium deposits on the brain can be associated with brain tumors or can be abnormally deposited on areas of the brain where the calcium interferes with the brain's ability to function, according to the federal Genetics Home Reference site.
The federal Genetics Home Reference discusses one such serious condition, known as familial idiopathic basal ganglia calcification or FIBGC. FIBGC is rare, but it does cause serious behavioral, psychiatric and movement problems. People with FIBGC will have seizures, memory loss, personality changes, dementia, problems with involuntary tensing of their muscles and problems controlling their limbs. With FIBGC the calcium is deposited on the basal ganglia.
Calcium deposits for cancer and tumors can be found in any area of the brain, according to GlobalMD. To find the calcium deposits, doctors often perform X-rays of the skull or the head because the X-ray is less sensitive and often less expensive when compared to the alternative brain scan.
Non-life-threatening and serious problems can also result from calcium deposits, but these are typically calcium deposits that are located in areas of the body other than the brain. WebMD states that calcium deposits found in the shoulders, knees, feet, hips, elbows, hands and feet can create calcific tendinitis. The condition is painful, but is not life-threatening.