Public condition directory
Browse public condition summaries from China medical resources by stable specialty category.
Nevus sebaceus
Nevus sebaceus is a tumor-like lesion formed by the abnormal combination and arrangement of normal skin tissues. Initially, it presents as a well-demarcated, thin, orange-yellow or yellowish-brown, oval, round, or linear plaque. During puberty, the lesion gradually thickens, forming a verrucous mass.
View detailsPapular urticaria
Papular urticaria is a common, recurrent allergic skin disease. It is most common in children aged 1 to 7 years, but can occur at any age. It presents as sudden onset of papules or papulovesicles, often accompanied by severe itching.
View detailsIchthyosis
Ichthyosis is a group of keratinization disorders characterized by varying degrees of fish-scale-like desquamation, accompanied by rough and dry skin. Most cases of ichthyosis are congenital, while some adult patients develop ichthyosis secondary to other diseases, which is known as acquired ichthyosis.
Zoonotic dermatoses
Zoonotic dermatoses are a group of inflammatory skin diseases. These diseases are often caused by animal bites or contact with animal secretions. The most common symptoms are skin itching and skin lesions.
View detailsMolluscum contagiosum
Molluscum contagiosum, commonly known as "water warts," is a common infectious skin disease caused by the molluscum contagiosum virus (MCV). Symptoms include millet-sized to soybean-sized, dome-shaped or hemispherical papules, which are densely distributed, have a waxy luster on the surface, and have an umbilicated depression in the center from which a cheese-like molluscum body can be expressed. The lesions can persist for several months to several years. However, most patients spontaneously recover within 6 to 9 months.
View detailsHerpes simplex
Herpes simplex is a common skin disease caused by the herpes simplex virus (HSV), characterized by clustered blisters. It can heal on its own but is prone to recurrence.
View detailsScabies
Scabies is a skin disease caused by the scabies mite parasitizing the epidermal layer of human skin. It is a common contagious disease. This disease is prevalent worldwide, with nearly 300 million people infected annually, mainly in developing countries and areas with poor economic and sanitary conditions. Epidemiologically, the prevalence of scabies is cyclical, with each cycle lasting 15 to 30 years.
View detailsPityriasis alba
Pityriasis alba, also known as simple pityriasis, facial dry pityriasis, streptococcal pityriasis, and streptococcal erythema, commonly referred to as "peach blossom rash" or "worm spots," is a chronic skin condition of unknown etiology characterized by dry, thin, pityriasiform scaly hypopigmented patches. It is common in children and adolescents aged 3-16 years, more prominent in individuals with darker skin, and more likely to occur in those with an allergic constitution.
View detailsErythema multiforme
Erythema multiforme is an acute inflammatory skin disease characterized by target-shaped or iris-like erythematous lesions, often symmetrically distributed on the extremities, frequently accompanied by mucosal involvement, and prone to recurrence. This disease is more common in spring and autumn, with a slightly higher incidence in males than females, and the highest incidence occurring between 10 and 30 years of age.
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