Public condition directory
Browse public condition summaries from China medical resources by stable specialty category.
Dermatofibroma
A dermatofibroma is a benign tumor caused by overactive growth of fibrous tissue within the skin. It commonly affects individuals aged 20 to 50 years. The main symptom is the appearance of reddish-brown or dark brown, firm, round or oval nodules on the skin.
View detailsBullous dermatoses
Bullous dermatoses are a group of skin diseases characterized by blisters and bullae as primary skin lesions. These diseases can be classified into autoimmune bullous dermatoses, hereditary bullous dermatoses, and other types of bullous diseases. Due to differences in the causes, extent, and severity of skin lesions among these diseases, their treatment difficulty and prognosis also vary.
View detailsPemphigoid
Pemphigoid, primarily encompassing bullous pemphigoid and cicatricial pemphigoid, is an autoimmune subepidermal blistering disease.
Tinea versicolor
Tinea versicolor, also known as pityriasis versicolor or "sweat spots," is a non-contagious skin condition caused by Malassezia, a common fungus. This condition is more prevalent in young and middle-aged adults, with a higher incidence in males. The main symptoms include scattered brown, red, or white patches on the trunk or upper limbs, which may or may not be accompanied by itching.
View detailsXanthomatosis
Xanthomatosis is not a true tumor, but a lipid metabolism disorder characterized by the accumulation of lipid-laden histiocytes or macrophages (foam cells, also known as xanthoma cells) in the dermis, subcutaneous tissue, or tendons. It is characterized by the formation of xanthoma-like lesions on the skin surface and can occur anywhere on the body.
View detailsDrug-induced dermatitis
Drug-induced dermatitis refers to inflammatory damage to the skin and mucous membranes caused by drugs entering the human body through various routes such as oral administration, injection, or inhalation. It may be accompanied by certain systemic symptoms, and in severe cases, it can affect multiple organs and systems.
View detailsBasal cell carcinoma
Basal cell carcinoma, also known as basal cell epithelioma, is a skin tumor originating from the basal layer of the epidermis and its appendages. Although generally considered low-risk, it can cause local infiltration, invasion, and ulceration of the skin and surrounding structures. Surgical excision is usually curative.
View detailsHereditary skin diseases
Hereditary skin diseases are caused by parents passing on their abnormal or mutated genes to their offspring, leading to the development of skin lesions characteristic of that gene at birth or later in life. There are over a hundred known hereditary skin diseases, such as freckles, ichthyosis, and albinism.
View detailsPorphyria cutanea tarda
Porphyria cutanea tarda (PCT) is a rare dermatological disease caused by congenital or acquired defects in heme synthesis, leading to an accumulation of porphyrins in the body. This results in skin damage, such as photosensitive rashes and increased skin fragility. Congenital or acquired defects in heme synthesis are the main causes of this disease.
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