Kidney disease with foot ulcers may be caused by foot fungal infection, vascular lesion, diabetic foot and so on. 1. Fungal infection of feet: As the resistance of patients with kidney disease is relatively poor, when the patient’s feet are infected by fungus, it may cause athlete’s foot, which may lead to symptoms such as peeling, blistering, itching and ulceration of feet. 2. Vascular lesions: when the condition of patients with kidney disease is more serious, it may cause hypertension, vasculitis, renal vascular renal failure and other complications, which will affect the normal function of the blood vessels of the lower limbs and cause foot ulceration over time. 3. Diabetic foot: long-term use of glucocorticoid drugs in patients with kidney disease may affect their own blood glucose, which may cause diabetes over time, and in severe cases, diabetic foot may occur, and patients with diabetic foot may experience symptoms such as abnormal sensation of the foot, foot deformity, foot pain, foot ulcers, infections and gangrene. It is recommended that patients seek medical examination in a timely manner in regular hospitals to clarify the cause of the disease after targeted treatment, pay attention to foot care in life to avoid contamination of the affected limbs, aggravate the infection.