The whitening of nails in patients with cerebral infarction may be related to poor peripheral blood circulation, or it may be caused by malnutrition, nail fungus disease and other reasons. 1. Poor peripheral blood circulation: patients with cerebral infarction often have underlying diseases such as cerebral atherosclerosis, diabetes mellitus and hyperlipidemia. If the underlying diseases are not well controlled, it is likely to lead to poor peripheral blood circulation, which may cause whitening of nails. 2. Malnutrition: If patients with cerebral infarction have swallowing disorders, they need long-term nasal feeding diet, which will easily cause malnutrition over time and may cause nail whitening symptoms. 3. Nail fungal disease: if patients with cerebral infarction are paralyzed, due to prolonged bed rest, it is easy to reduce the immunity of the body, and it is likely to be induced by fungal infections, which may cause nail whitening, and it may be accompanied by nail plate deformation, thickening, discoloration, and even shedding and other symptoms. The whitening of nails in patients with cerebral infarction may also be caused by other reasons. If the symptoms are serious, it is recommended to consult a doctor as soon as possible to clarify the causative factors and give targeted treatment.