The life expectancy of most sarcoidosis patients isn't affected by the disease, according to WebMD. In the small percentage of patients who develop chronic sarcoidosis, organs may deteriorate. Patients rarely die of the disease, but can die of complications that affect the lungs, brain and heart.
Many people who develop sarcoidosis have it briefly without ever knowing it, reports WebMD. Patients diagnosed with the disease usually have mild symptoms and don't require treatment. Treatment consists of medication to reduce inflammation and to relieve fatigue. Between 20 and 30 percent of sarcoidosis patients experience permanent lung damage. In addition to medication, patients receive instruction on general health practices, such as a healthy diet, exercise and getting regular check ups.