18q deletion syndrome
Acrodermatitis enteropathica
Acrogeria (Gottron syndrome)
Acrokeratosis verruciformis (acrokeratosis verruciformis of Hopf)
Adams–Oliver syndrome
Adducted thumbs syndrome
Albrights hereditary osteodystrophy
Angelman syndrome
Apert syndrome (acrocephalosyndactyly)
Arthrogryposis–renal dysfunction–cholestasis syndrome
Ataxia telangiectasia (Louis–Bar syndrome)
Atrichia with papular lesions (papular atrichia)
Atrophodermia vermiculata (acne vermoulante, acne vermoulanti, atrophoderma reticulata symmetrica faciei, atrophoderma reticulatum, atrophoderma vermiculata, atrophoderma vermiculatum, atrophodermia reticulata symmetrica faciei, atrophodermia ulerythematosa, atrophodermie vermiculée des joues avec kératoses folliculaires, folliculitis ulerythema reticulata, folliculitis ulerythematous reticulata, folliculitis ulerythemosa, honeycomb atrophy, ulerythema acneforme, ulerythema acneiforme)
Autoimmune polyendocrinopathy–candidiasis–ectodermal dystrophy syndrome
Bart syndrome
Bazex–Dupré–Christol syndrome (Bazex syndrome, follicular atrophoderma and basal cell carcinomas)
Beare–Stevenson cutis gyrata syndrome
Bloom syndrome (Bloom–Torre–Machacek syndrome)
Blue rubber bleb nevus syndrome
Brittle hair–intellectual impairment–decreased fertility–short stature syndrome
Cantú syndrome
Cardio-facio-cutaneous syndrome (cardiofaciocutaneous syndrome)
Cartilage–hair hypoplasia (McKusick type metaphyseal chondrodysplasia)
Cerebral dysgenesis–neuropathy–ichthyosis–keratoderma syndrome
Childhood tumor syndrome
Chondrodysplasia punctata
Cicatricial junctional epidermolysis bullosa
Craniosynostosis–anal anomalies–porokeratosis syndrome
Cockayne syndrome
Colobomas of the eye–heart defects–ichthyosiform dermatosis–mental retardation–ear defects syndrome (CHIME syndrome, Zunich neuroectodermal syndrome, Zunich–Kaye syndrome)
Congenital hemidysplasia with ichthyosiform erythroderma and limb defects syndrome (CHILD syndrome)
Conradi–Hünermann syndrome (Conradi–Hünermann–Happle syndrome, Happle syndrome, X-linked dominant chondrodysplasia punctata)
Costello syndrome
Cronkhite–Canada syndrome
Crouzon syndrome
Cutis verticis gyrata
Dariers disease (Darier–White disease, dyskeratosis follicularis, keratosis follicularis) 
DeSanctis–Cacchione syndrome
Disseminated superficial actinic porokeratosis
Disseminated superficial porokeratosis
Dolichol kinase deficiency
Dominant dystrophic epidermolysis bullosa
Dyskeratosis congenita (Zinsser–Cole–Engman syndrome)
Dystrophic epidermolysis bullosa
Ectodermal dysplasia
Ectodermal dysplasia with corkscrew hairs
Ectrodactyly–ectodermal dysplasia–cleft syndrome (EEC syndrome, split hand–split foot–ectodermal dysplasia–cleft syndrome)
Epidermolysis bullosa herpetiformis (Dowling–Meara epidermolysis bullosa simplex)
Epidermolysis bullosa simplex
Epidermolysis bullosa simplex of Ogna
Epidermolysis bullosa simplex with mottled pigmentation
Epidermolysis bullosa simplex with muscular dystrophy
Epidermolytic hyperkeratosis (bullous congenital ichthyosiform erythroderma, bullous ichthyosiform erythroderma)
Erythrokeratodermia with ataxia (Giroux–Barbeau syndrome)
Familial benign chronic pemphigus (familial benign pemphigus, Hailey–Hailey disease)
Fanconi syndrome (familial pancytopenia, familial panmyelophthisis)
Fibrodysplasia ossificans progressiva
Focal dermal hypoplasia (Goltz syndrome)
Follicular atrophoderma
Franceschetti–Klein syndrome (mandibulofacial dysostosis)
Gardners syndrome (familial colorectal polyposis)
Gastrocutaneous syndrome
Generalized atrophic benign epidermolysis bullosa
Generalized epidermolysis bullosa simplex (Koebner variant of generalized epidermolysis bullosa simplex)
Generalized trichoepithelioma
Giant axonal neuropathy with curly hair
Gingival fibromatosis with hypertrichosis
Haber syndrome
Hallerman–Streiff syndrome
Harlequin-type ichthyosis (harlequin baby, harlequin fetus, harlequin ichthyosis, ichthyosis congenita, ichthyosis congenita gravior)
Hay–Wells syndrome (AEC syndrome, ankyloblepharon filiforme adnatum–ectodermal dysplasia–cleft palate syndrome, ankyloblepharon–ectodermal defects–cleft lip and palate syndrome, ankyloblepharon–ectodermal dysplasia–clefting syndrome)
Hereditary sclerosing poikiloderma 
Heterochromia iridum
Holocarboxylase synthetase deficiency
Hypohidrotic ectodermal dysplasia (anhidrotic ectodermal dysplasia, Christ–Siemens–Touraine syndrome)
Hypotrichosis–acro-osteolysis–onychogryphosis–palmoplantar keratoderma–periodontitis syndrome
Hypotrichosis–lymphedema–telangiectasia syndrome
Ichthyosis–brittle hair–impaired intelligence–decreased fertility–short stature syndrome (IBIDS syndrome, sulfur-deficient brittle hair syndrome, Tays syndrome, trichothiodystrophy, trichothiodystrophy with ichthyosis)
Ichthyosis bullosa of Siemens (ichthyosis exfoliativa)
Ichthyosis follicularis (ichthyosis follicularis with alopecia and photophobia syndrome)
Ichthyosis linearis circumflexa
Ichthyosis prematurity syndrome
Ichthyosis vulgaris (autosomal dominant ichthyosis, ichthyosis simplex)
Ichthyosis with confetti
Neonatal ichthyosis–sclerosing cholangitis syndrome (ichthyosis–sclerosing cholangitis syndrome, NISCH syndrome)
Incontinentia pigmenti achromians (hypomelanosis of Ito)
Immune dysfunction–polyendocrinopathy–enteropathy–X-linked syndrome
Jaffe–Campanacci syndrome
Johanson–Blizzard syndrome
Johnson–McMillin syndrome
Joubert syndrome
Junctional epidermolysis bullosa
Junctional epidermolysis bullosa gravis (epidermolysis bullosa letalis, Herlitz disease, Herlitz epidermolysis bullosa, Herlitz syndrome, lethal junctional epidermolysis bullosa)
Junctional epidermolysis bullosa with pyloric atresia
Kabuki syndrome (Kabuki makeup syndrome, Niikawa–Kuroki syndrome)
Keratolytic winter erythema (erythrokeratolysis hiemalis, Oudtshoorn disease, Oudtshoorn skin)
Keratosis follicularis spinulosa decalvans (Siemens-1 syndrome)
Keratosis linearis with ichthyosis congenita and sclerosing keratoderma syndrome
Keratosis pilaris atrophicans faciei (folliculitis rubra, keratosis pilaris rubra atrophicans faciei, lichen pilare, lichen pilaire ou xerodermie pilaire symmetrique de la face, ulerythema ophryogenes, xerodermi pilaire symmetrique de la face)
Keratosis pilaris
Kindler syndrome (acrokeratotic poikiloderma, bullous acrokeratotic poikiloderma of Kindler and Weary, congenital poikiloderma with blisters and keratoses, congenital poikiloderma with bullae and progressive cutaneous atrophy, hereditary acrokeratotic poikiloderma, hyperkeratosis–hyperpigmentation syndrome, Weary–Kindler syndrome)
Klinefelter syndrome
Klippel–Feil syndrome
Lamellar ichthyosis (collodion baby)
Legius syndrome (neurofibromatosis type 1-like syndrome)
Lelis syndrome
Lenz–Majewski syndrome
Leschke syndrome
Lethal acantholytic epidermolysis bullosa
Lhermitte–Duclos disease
Linear and whorled nevoid hypermelanosis (linear nevoid hyperpigmentation, progressive cribriform and zosteriform hyperpigmentation, reticulate and zosteriform hyperpigmentation, reticulate hyperpigmentation of Iijima and Naito and Uyeno, zebra-like hyperpigmentation in whorls and streaks, zebra-line hyperpigmentation)
Linear Darier disease (acantholytic dyskeratotic epidermal nevus)
Linear porokeratosis
Localized epidermolysis bullosa simplex (Weber–Cockayne syndrome, Weber–Cockayne variant of generalized epidermolysis bullosa simplex)
Mandibuloacral dysplasia
Marinesco–Sjögren syndrome
McCune–Albright syndrome
McCusick syndrome
Metageria
Microphthalmia–dermal aplasia–sclerocornea syndrome
Mitis junctional epidermolysis bullosa (nonlethal junctional epidermolysis bullosa)
Mitochondrial myopathy–encephalopathy–lactic acidosis–stroke syndrome
Multiple lentigines syndrome (cardiocutaneous syndrome, Gorlin syndrome II, lentiginosis profusa syndrome, LEOPARD syndrome, progressive cardiomyopathic lentiginosis)
Multiple pterygium syndrome
Multiple sulfatase deficiency (Austin disease, mucosulfatidosis)
Naegeli–Franceschetti–Jadassohn syndrome (chromatophore nevus of Naegeli)
Netherton syndrome
Neurofibromatosis type 1 (von Recklinghausens disease) 
Neurofibromatosis type 3 (neurofibromatosis mixed type)
Neurofibromatosis type 4 (neurofibromatosis variant type)
Neutral lipid storage disease (Dorfman–Chanarin syndrome)
Nonbullous congenital ichthyosiform erythroderma (congenital ichthyosiform erythroderma)
Noonan syndrome
Oculocerebrocutaneous syndrome (Delleman–Oorthuys syndrome)
Oculodentodigital dysplasia
Odonto–Tricho–Ungual–Digital–Palmar syndrome
Oliver–McFarlane syndrome
Orofaciodigital syndrome
Pachydermoperiostosis (idiopathic hypertrophic osteoathorpathy, Touraine–Solente–Gole syndrome)
Peeling skin syndrome (acral peeling skin syndrome, continual peeling skin syndrome, familial continual skin peeling, idiopathic deciduous skin, keratolysis exfoliativa congenita)
Pfeiffer syndrome
Photosensitivity–ichthyosis–brittle sulfur-deficient hair–impaired intelligence–decreased fertility–short stature syndrome
Pityriasis rotunda (pityriasis circinata, tinea circinata)
Plate-like osteoma cutis
Plaque-type porokeratosis (classic porokeratosis, porokeratosis of Mibelli)
Polyneuropathy–organomegaly–endocrinopathy–monoclonal gammopathy–skin changes syndrome (Crow–Fukase syndrome)
Polyostotic fibrous dysplasia (Albrights disease)
Popliteal pterygium syndrome
Porokeratosis
Porokeratosis palmaris et plantaris disseminata
Prader–Willi syndrome
Progeria (Hutchinson–Gilford progeria syndrome, Hutchinson–Gilford syndrome, progeria syndrome)
Progressive osseous heteroplasia
Progressive symmetric erythrokeratodermia (erythrokeratodermia progressiva symmetrica)
Proteus syndrome
Proteus-like syndrome
Punctate porokeratosis
Rapp–Hodgkin syndrome (Rapp–Hodgkin ectodermal dysplasia syndrome)
Recessive dystrophic epidermolysis bullosa (Hallopeau–Siemens variant of epidermolysis bullosa, Hallopeau–Siemens disease)
Refsums disease (heredopathia atactica polyneuritiformis, phytanic acid storage disease)
Relapsing linear acantholytic dermatosis
Restrictive dermopathy 
Rhizomelic chondrodysplasia punctata (autosomal recessive chondrodysplasia punctata type 1, chondrodystrophia calcificans punctata, peroxisomal biogenesis disorder complementation group 11)
Rombo syndrome
Rothmund–Thomson syndrome (poikiloderma congenitale)
Rud syndrome
Say syndrome
Scalp–ear–nipple syndrome (Finlay–Marks syndrome)
Schindler disease (Kanzaki disease, alpha-N-acetylgalactosaminidase deficiency)
Schinzel–Giedion syndrome
Scleroatrophic syndrome of Huriez (Huriez syndrome, palmoplantar keratoderma with scleroatrophy, palmoplantar keratoderma with sclerodactyly, scleroatrophic and keratotic dermatosis of the limbs, sclerotylosis)
Segmental neurofibromatosis
Senter syndrome (Desmons syndrome)
Shabbir syndrome (laryngo–onycho–cutaneous syndrome)
Silver–Russell syndrome
Sjögren–Larsson syndrome
Skin fragility syndrome (plakophilin 1 deficiency)
Smith–Lemli–Opitz syndrome
Sturge–Weber syndrome
Supernumerary nipples–uropathies–Beckers nevus syndrome
Terminal osseous dysplasia with pigmentary defects
Tooth and nail syndrome (hypodontia with nail dysgenesis, Witkop syndrome)
Townes–Brocks syndrome
Transient bullous dermolysis of the newborn 
Treacher Collins syndrome (Treacher Collins–Franceschetti syndrome)
Tricho–dento–osseous syndrome
Tricho–rhino–phalangeal syndrome
Tuberous sclerosis (Bourneville disease, epiloia)
Turner syndrome
Ulnar–mammary syndrome
Van Der Woude syndrome
Von Hippel–Lindau syndrome
Watson syndrome
Werner syndrome (adult progeria)
Westerhof syndrome
Whistling syndrome (craniocarpotarsal syndrome, distal arthrogryposis type 2, Freeman–Sheldon syndrome, Windmill–Vane–Hand syndrome)
Wilson–Turner syndrome
Wolf–Hirschhorn syndrome (4p- syndrome)
X-linked ichthyosis (steroid sulfatase deficiency, X-linked recessive ichthyosis)
X-linked recessive chondrodysplasia punctata
Xeroderma pigmentosum (Cockayne syndrome complex)
XXYY genotype
Zimmermann–Laband syndrome

Infection-related
Infection-related cutaneous conditions may be caused by bacteria, fungi, yeast, viruses, or parasites.
Aeromonas infection
African tick bite fever
American tick bite fever (Rickettsia parkeri infection)
Arcanobacterium haemolyticum infection
Bacillary angiomatosis
Bejel (endemic syphilis)
Blastomycosis-like pyoderma (pyoderma vegetans)
Blistering distal dactylitis
Botryomycosis
Brill–Zinsser disease
Brucellosis (Bangs disease, Malta fever, undulant fever)
Bubonic plague
Bullous impetigo
Cat scratch disease (cat scratch fever, English–Wear infection, inoculation lymphoreticulosis, subacute regional lymphadenitis)
Cellulitis 
Chancre
Chancroid (soft chancre, ulcus molle)
Chlamydial infection
Chronic lymphangitis
Chronic recurrent erysipelas
Chronic undermining burrowing ulcers (Meleney gangrene)
Chromobacteriosis infection
Condylomata lata
Cutaneous actinomycosis
Cutaneous anthrax infection
Cutaneous C. diphtheriae infection (Barcoo rot, diphtheric desert sore, septic sore, Veldt sore)
Cutaneous group B streptococcal infection
Cutaneous Pasteurella hemolytica infection
Cutaneous Streptococcus iniae infection
Dermatitis gangrenosa (gangrene of the skin)
Ecthyma
Ecthyma gangrenosum
Ehrlichiosis ewingii infection
Elephantiasis nostras
Endemic typhus (murine typhus)
Epidemic typhus (epidemic louse-borne typhus)
Erysipelas (ignis sacer, Saint Anthonys fire)
Erysipeloid of Rosenbach
Erythema marginatum
Erythrasma
External otitis (otitis externa, swimmers ear) 
Felon
Flea-borne spotted fever
Flinders Island spotted fever
Flying squirrel typhus
Folliculitis
Fournier gangrene (Fournier gangrene of the penis or scrotum)
Furunculosis (boil)
Gas gangrene (clostridial myonecrosis, myonecrosis)
Glanders (equinia, farcy, malleus)
Gonococcemia (arthritis–dermatosis syndrome, disseminated gonococcal infection)
Gonorrhea (clap)
Gram-negative folliculitis
Gram-negative toe web infection
Granuloma inguinale (Donovanosis, granuloma genitoinguinale, granuloma inguinale tropicum, granuloma venereum, granuloma venereum genitoinguinale, lupoid form of groin ulceration, serpiginous ulceration of the groin, ulcerating granuloma of the pudendum, ulcerating sclerosing granuloma)
Green nail syndrome
Group JK Corynebacterium sepsis
Haemophilus influenzae cellulitis
Helicobacter cellulitis
Hospital furunculosis
Hot tub folliculitis (Pseudomonas aeruginosa folliculitis)
Human granulocytotropic anaplasmosis
Human monocytotropic ehrlichiosis
Impetigo contagiosa
Japanese spotted fever
Leptospirosis (Fort Bragg fever, pretibial fever, Weils disease)
Listeriosis
Ludwigs angina
Lupoid sycosis
Lyme disease (Afzelius disease, Lyme borreliosis)
Lymphogranuloma venereum (climatic bubo, Durand–Nicolas–Favre disease, lymphogranuloma inguinale, poradenitis inguinale, strumous bubo)
Malakoplakia (malacoplakia)
Mediterranean spotted fever (Boutonneuse fever)
Melioidosis (Whitmores disease)
Meningococcemia
Missouri Lyme disease
Mycoplasma infection
Necrotizing fasciitis (flesh-eating bacteria syndrome)
Neonatal toxic shock-like exanthematous disease
Nocardiosis
Noma neonatorum
North Asian tick typhus
Ophthalmia neonatorum 
Oroya fever (Carrions disease)
Pasteurellosis
Perianal cellulitis (perineal dermatitis, streptococcal perianal disease)
Periapical abscess
Pinta
Pitted keratolysis (keratolysis plantare sulcatum, keratoma plantare sulcatum, ringed keratolysis)
Plague
Primary gonococcal dermatitis
Pseudomonal pyoderma
Pseudomonas hot-foot syndrome
Pyogenic paronychia
Pyomyositis
Q fever
Queensland tick typhus
Rat-bite fever
Recurrent toxin-mediated perineal erythema
Rhinoscleroma
Rickettsia aeschlimannii infection
Rickettsialpox
Rocky Mountain spotted fever
Saber shin (anterior tibial bowing)
Saddle nose
Salmonellosis
Scarlet fever
Scrub typhus (Tsutsugamushi fever)
Shigellosis
Staphylococcal scalded skin syndrome (pemphigus neonatorum, Ritters disease)
Streptococcal intertrigo
Superficial pustular folliculitis (impetigo of Bockhart, superficial folliculitis)
Sycosis vulgaris (barbers itch, sycosis barbae)
Syphilid
Syphilis (lues)
Tick-borne lymphadenopathy
Toxic shock syndrome (streptococcal toxic shock syndrome, streptococcal toxic shock-like syndrome, toxic streptococcal syndrome)
Trench fever (five-day fever, quintan fever, urban trench fever)
Tropical ulcer (Aden ulcer, jungle rot, Malabar ulcer, tropical phagedena)
Tularemia (deer fly fever, Oharas disease, Pahvant Valley plague, rabbit fever)
Verruga peruana
Vibrio vulnificus infection
Yaws (bouba, frambösie, parangi, pian)

Mycobacterium-related
Mycobacterium-related cutaneous conditions are caused by Mycobacterium infections.