Lindsay’s nails suggest possible chronic diseases, such as chronic renal failure and cirrhosis. 1. Chronic renal failure: chronic renal failure is usually caused by various renal diseases, and the development of uremia stage may appear systemic systemic manifestations, such as moderate to severe anemia, gastrointestinal discomfort, metabolic acidosis, calcium and phosphorus metabolism disorders, generalized edema, and even cause cardiac function damage, brain damage, and so on. Lindsay’s nails may appear. 2. Cirrhosis: Cirrhosis is mostly caused by immune disorders, parasitic infections, genetics and other factors, patients usually have no obvious symptoms in the early stage, some patients may have diarrhea, fatigue and other digestive symptoms, with the development of the disease, the patient will suffer from bleeding, varicose veins, shock and other symptoms. Lindsay’s nails may occur. Lindsay’s nails may also have other causes, it is recommended to go to the regular hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.