Public condition directory

Internal Medicine

Browse public condition summaries from China medical resources by stable specialty category.

714 conditionsPage 9 of 80

Internal MedicineHematology

Methemoglobinemia

Under physiological conditions, hemoglobin forms methemoglobin due to auto-oxidation. However, the enzymatic or non-enzymatic reduction systems in the body ensure that the reduction capacity of methemoglobin far exceeds the oxidation capacity of hemoglobin, thereby maintaining the proportion of methemoglobin in hemoglobin at no more than 1%. When methemoglobin production is excessive or its reduction is impaired, the balance between methemoglobin and hemoglobin is disrupted, and the methemoglobin content in the blood exceeds 1%, leading to methemoglobinemia. The main manifestations include cyanosis (unresponsive to oxygen therapy), dyspnea, and dizziness.

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Internal MedicineHematology

Thalassemia

Anemia is defined as hemoglobin levels below 120 g/L in adult males and below 110 g/L in adult females. Thalassemia, also known as Cooley's anemia or Mediterranean anemia, is a group of inherited blood disorders caused by genetic defects. It results from abnormal globin, a crucial component of hemoglobin (commonly known as blood pigment), leading to the premature destruction of red blood cells (hemolysis). The highest incidence of this disease is found in countries along the Mediterranean coast and in Southeast Asian countries. In China, provinces south of the Yangtze River are high-incidence areas, with Guangxi, Guangdong, and Hainan provinces having the highest rates. Key symptoms include pale complexion, slow eating, developmental delay, fatigue, poor appetite, and abdominal swelling.

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Internal Medicine

Methemoglobinemia

Thalassemia

Hemolytic anemia

Polycythemia vera

Thrombophilia

Hodgkin lymphoma

Myelofibrosis

Idiopathic thrombocytopenic purpura

Childhood Langerhans cell histiocytosis