There are five hazards:

1. Cherries are warm in nature and should not be eaten by those with febrile venereal diseases and cough due to deficiency of heat. Eating too much can easily lead to internal heat.

2. Cherry kernels contain cyanogenic glycosides, which will produce hydrocyanic acid after hydrolysis. Care should be taken when using them for medicinal purposes.

3. Be careful about poisoning, because in addition to containing a lot of iron, it also contains a certain amount of cyanogenic glycosides. If you eat too much, it will cause iron poisoning or cyanide poisoning. Once you feel uncomfortable after eating too many cherries, sugar cane juice can be used to clear away heat and detoxify.

4. People with ulcer symptoms should eat with caution; people with diabetes should not eat.

5. Patients with kidney disease should be careful. The high potassium content of cherries should not be underestimated. Each 100 grams contains 258 mg of potassium, which is not a small number for patients with kidney disease. In patients with kidney disease, if the function of the kidneys in regulating water and electrolytes is lost, the patient will develop oliguria and edema. When there is oliguria, there may be potassium retention due to reduced potassium excretion. If the patient eats too many cherries, the patient will develop hyperkalemia. When blood potassium is >6.5 mmol/L, it can cause the patient's heart to stop beating within seconds to minutes. Therefore, hyperkalemia can be said to be the "hidden killer" of chronic kidney disease