Health conditions that may cause hand tremors include stroke, dystonia, multiple sclerosis, overactive thyroid, Parkinson's disease and peripheral neuropathy. The main cause of tremor is not known, but it is linked to unusual electrical activity in the brain. It is also tends to run in families as nearly half of the cases of this condition are caused by genetics.
A child who is born by a parent who has essential tremor may have the risk of up to 50 percent of getting the gene, but may fail to experience the symptoms, as stated by WebMD. This condition is commonly in older adults and tends to get worse as a person gets old. It can occur to any person, but it is known to strike when a person is at his or her adolescence stage. Essential tremor is a common disorder affecting up to 10 million people in the United States, as stated by WebMD.
There is no treatment for this condition, but there are certain medications that can be used to help prevent the advancement of the symptoms, as stated by the National Health Service. There are also no medical tests to diagnose this condition. Although it is rare, severe cases of essential tremor may lead to surgical operation if the medications fail to work.