True erythrocytosis generally refers to true erythrocytosis, which can present with symptoms such as blurred vision, tinnitus, amnesia, vertigo, fatigue, excessive sweating, visual disturbances, itchy skin, hypertension, thrombosis or infarction, hemiplegia, redness and purple coloring of mucous membranes, liver and spleen enlargement, renal calculi, gout, and so on. 1. Patients with true erythrocytosis can have many clinical symptoms. In the early stage, symptoms such as dizziness, fatigue, blurred vision, headache, amnesia and tinnitus can occur. Subsequently, excessive sweating, tingling or numbness of the limbs, visual impairment, itching of the skin and peptic ulcers, etc. About half of the patients can develop high blood pressure. 2. When blood circulation is slowed down with thrombocytosis, thrombosis or infarction may occur, which may lead to insufficient blood supply to coronary arteries or hemiplegia in severe cases. The skin mucosa of the patient may appear obvious red and purple, especially the cheeks, tip of the nose, lips, tongue, ears, neck and finger tips are severe. Splenomegaly is obvious, mild hepatomegaly, and kidney stones, secondary gout and impairment of renal function may also occur. If the above symptoms occur, it is recommended to go to the hospital in time to improve the relevant examination to clarify the cause, and early standardized treatment under the guidance of physicians to reduce the adverse effects of the disease.