A small portion of Parkinson's disease has a genetic predisposition. According to research statistics, about 5% to 10% of Parkinson’s disease cases are familial, caused by certain gene mutations leading to neurodegeneration. This part of the disease does have a genetic predisposition. However, it does not mean that if the parents have the disease, the child will definitely inherit it; environmental factors are also related. Most cases of Parkinson’s disease do not have a genetic predisposition and are sporadic, possibly related to cerebral ischemia, hypoxia, stress, mitochondrial dysfunction, and long-term exposure to certain toxins. These aspects are definitely not hereditary. Parkinson's disease is a neurodegenerative disorder that can cause symptoms such as bradykinesia, increased muscle tone, and unstable posture. It is important to seek medical treatment promptly.