The crystals inside the plums may be a sign of immaturity, and may also be caused by insect eggs, and it is not possible to determine the cause of the recommended not to eat. Plums contain carbohydrates, dietary fiber, a variety of vitamins and minerals, etc., eaten in moderation can be supplemented for the body. Plums will form crystals when they are not ripe. At this time, the plum taste is more acidic, crystallization taste may be worse, it is not recommended to eat, it is recommended to choose to eat ripe plums. Avoid eating plums with crystals that are caused by insect eggs. Plums with eggs will secrete pectin in the form of water droplets, and if you eat pectin containing eggs, it may cause abdominal pain, diarrhea, and other abdominal discomforts, so you should not eat plums with eggs.