The side effects of asparagus are mainly reflected in the patient’s susceptibility to allergies, dizziness, chest tightness, irregular heart rate and itching of the skin. For weak and special patients, asparagus can easily cause coma or shock and other conditions. The contraindications of asparagus are mainly for some special groups of people are not suitable for application, such as children and pregnant women should never use asparagus, otherwise it will be very bad for the growth and development of children and fetuses, and even easily cause miscarriage. For patients with inflammatory diseases are not suitable for the application of asparagus, such as patients with colds and fevers, patients with special pain in the joints, such patients should be cautious with asparagus. There are also serious chronic diseases, such as hypertension, coronary heart disease, diabetes, kidney disease and liver failure, should be applied under the guidance of a doctor. It should also be applied with caution to the elderly and infirm, including lactating women and the elderly.