<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi! So, my friend this last fall got a concussion during Volleyball season because while we were putting things away after practice she got hit in the head. Ever since, she shakes constantly. She has what people call a tremor in her hands and sometimes other parts of her body. It only stops when she touches something. Shes worried shes messed up in her head. I think it s something else. Care to shed some light for me please?  <response>: Hello, Tremors after a head injury are indicative of TBI, traumatic brain injury or Neurological problems developing. She needs to get physically examined, get done EEG, MRI, CT, Neurocognitive tests Nerve conduction tests, nerve biopsy. Get assessed evaluated. Her treatment will depend upon the pathology detected. Damage to the mid-brain may cause Parkinson disease. Closed head injuries cause tremors. She may be treated with medications, but if a response is not good she may require surgery. Hope I have answered your query. Let me know if I can assist you further. 