The following information may help to address your question:
Behçet's disease affects each person differently, so making determinations regarding subsequent attacks and long-term prognosis is difficult. Some people have only mild symptoms, such as canker sores or ulcers in the mouth or on the genitals. Others have more severe signs, such as meningitis. More severe symptoms usually appear months or years after a person notices the first signs of Behçet's disease. Symptoms can last for a long time or may come and go in a few weeks. Typically, symptoms appear, disappear, and then reappear. The times when a person is having symptoms are called flares. Different symptoms may occur with each flare.
While your specific course cannot be determined, research has shown that there are some general principles which may play a role in how the disease progresses: