There are five stages of Parkinson's disease, which progress over time, culminating in the patient losing control of physical movements, according to WebMD. In stage one, an individual may only have symptoms of a mild tremor. These symptoms usually affect only one side of the body in stage one, explains Everyday Health.
In stage 2 Parkinson's, an individual usually has symptoms affecting both sides of the body. Problems with balance and tremors increase, and walking is usually affected, reports WebMD.
Patients with stage 3 Parkinson's are usually still able to function independently, explains Everyday Health. Slowed movements are noticed in this stage of the disease, reports WebMD, and a patient may have difficulty standing. Writing and speech changes are visible as well.
More severe symptoms characterize stage 4 Parkinson's disease, as bradykinesia, or slowed movements, cause shuffling feet, according to Mayo Clinic. Muscle rigidity is also common, and the patient needs assistance with daily activities.
End-stage Parkinson's disease, or stage 5, finds the patient needing care around the clock, explains WebMD. Walking and standing are usually not possible without assistance, and the patient is usually bedridden.
As of April 2015, there is no cure for Parkinson's disease, but medications can help slow the progression of the disease in some patients, explains Mayo Clinic. Physical therapy is often prescribed to help strengthen balance, and for some patients, surgery to implant electrodes in the brain can help ease symptoms of Parkinson's.