The sufferer easily suffers from diabetes;4.Age increment, the diabetes falls ill a rate to obviously increase Gao, 40 years old later of medium the old-age friend have to periodically check blood sugar, uncommon want to check after meal blood sugar in the meantime;5.The parents have diabetes, and the age is over the 40-year-old;6.Once produced the heavy infant(4 kilograms or above)'s women;7.The smoker also belongs to high Wei crowd;8.Have self-moving low blood sugar low blood sugar history or wet the sugar male but empty stomach blood sugar normally.