In some sufferers sarcoidosis can progress to pulmonary fibrosis and death. About half of sufferers get well without treatment or with treatment recovery is usually within 12–36 months, most certainly within five years. Some cases stay present for several decades. The disease can become chronic or remit spontaneously, with worsening and remissions in cycles.
Most sarcoidosis sufferers can live a relatively normal life; those with an immunosuppressed system must play safe as possible to avoid infections while the steroid treatment is carried out. If sarcoidosis continues to becoming severe and chronic then life can become complicated though this is usually less then 10%.