Public condition directory
Browse public condition summaries from China medical resources by stable specialty category.
Raynaud's syndrome
Raynaud's syndrome is a group of syndromes characterized by intermittent blanching, cyanosis, and then redness of the fingers or toes, often caused by autoimmune diseases such as systemic lupus erythematosus, or external factors like cold and emotional stress. It can occur at various ages, with the highest incidence in young women.
View detailsPolymyalgia rheumatica
Polymyalgia rheumatica is a rheumatic disease characterized by muscle and joint stiffness, and fever.
View detailsEosinophilia
Eosinophilia is characterized by a persistent increase in eosinophil counts in the blood or bone marrow and extensive eosinophil infiltration in tissues. Clinically, it is often associated with various diseases and represents a disease process, particularly a non-specific reaction to parasitic infections, allergic diseases, connective tissue diseases, and tumors. Eosinophilia is classified by the degree of eosinophil elevation as follows: Mild: Eosinophils (0.4–1.5) × 10^9/L Moderate: Eosinophils (1.5–5) × 10^9/L Severe: Eosinophils > 5 × 10^9/L
Psoriatic arthritis
Psoriatic arthritis is a chronic inflammatory joint disease associated with psoriasis. It commonly affects individuals aged 30-50 years, with a higher prevalence in males than females. Key symptoms include typical psoriatic skin lesions (silvery-white scales, Auspitz sign, and pinpoint bleeding) and psoriatic arthritis (pain, stiffness, and swelling in affected joints, which improves with activity).
View detailsRheumatoid arthritis
Rheumatic arthritis refers to arthritis associated with Group A beta-hemolytic streptococcal infection, usually secondary to untreated Group A beta-hemolytic streptococcal diseases such as pharyngitis and tonsillitis. Typical manifestations include polyarticular, migratory involvement of large joints, with pain, swelling, redness, and warmth in the affected joints. Rheumatic arthritis is more common in the winter and spring rainy seasons.
View detailsSAPHO syndrome
SAPHO syndrome is a chronic disease primarily affecting the skin, bones, and joints. It is characterized by synovitis, acne, pustulosis, hyperostosis, and osteomyelitis, from which its name is derived. It is also known as synovitis-acne-pustulosis-hyperostosis-osteomyelitis syndrome. This is a rare disease, with most reported cases in Europe, and others in North America, Japan, and Australia. Cases in China are extremely rare.
View detailsPolyarteritis nodosa
Polyarteritis nodosa (PAN) is a necrotizing vasculitis affecting the entire wall of medium and small arteries. It can occur at any age, but is most common in men aged 40-60 years. Clinical manifestations vary depending on the affected arteries. Some cases are limited to the skin, known as cutaneous PAN. Others involve multiple organs or systems, with the kidneys, gastrointestinal tract, heart, nerves, and skin being most commonly affected.
View detailsCostochondritis
Chondritis is a broad category of diseases characterized by inflammatory lesions of the cartilage tissue in the human body, with symptoms primarily including localized pain and swelling. It is divided into non-specific chondritis and infectious chondritis, with non-specific chondritis being the most common in clinical practice.
View detailsAllergic vasculitis
Allergic vasculitis, also known as hypersensitivity vasculitis, is an allergic reaction caused by drugs or infections. It primarily affects small blood vessels in the skin (arterioles, venules, and capillaries), but can also involve small blood vessels in other organs, leading to multi-system disease. The main manifestations of this disease are palpable purpura and/or petechiae (subcutaneous hemorrhagic spots less than 2 mm in diameter) and ecchymoses (subcutaneous hemorrhagic spots greater than 5 mm in diameter) on the skin. It may be accompanied by symptoms in other systems, including the kidneys, joints, intestines, heart, respiratory system, and nervous system.
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