Astragalus long worms indicate that it has been spoiled and can no longer be taken. Deteriorated astragalus has lost its medicinal properties, taking deteriorated astragalus may also cause abdominal pain and diarrhea, nausea, vomiting and other diseases, and even cause poisoning, which is not conducive to good health. Under normal circumstances, high-quality astragalus cut surface showing light yellow, can be smelled its unique fragrance of herbs. Deteriorated astragalus is grayish dark color, the surface can be seen mold spots, there is a fishy smell. In addition, spoiled astragalus is very likely to contain aflatoxin, once accidentally consumed, will also increase the chance of liver cancer. Therefore, it is not recommended to take spoiled astragalus to avoid jeopardizing your health. Astragalus should be kept dry and sealed in daily storage, and should be used under the guidance of a doctor if there are any uncomfortable symptoms, so as not to delay the condition.