Scalp Rash: Causes & Reasons

Possible Causes for Scalp Rash

On DermNet NZ Diagnosis of scalp rashes Pityriasiform seborrhoeide Sebopsoriasis Pityriasis versicolor Malassezia folliculitis Dermatitis Psoriasis Pityriasis amiantacea Malassezia [dermnetnz.org]

Frequently, a stubborn diaper rash accompanies the scalp rash. The specific causes are not known. [en.wikipedia.org]

Frequently, a stubborn diaper rash accompanies the scalp rash. Older children and adults may develop a thick, tenacious, scaly rash with large flakes of skin. [web.archive.org]

Tinea Corporis

Symptoms of scalp ringworm may include: Red, scaly rash on the scalp Itching of the scalp Hair loss on the scalp Rash elsewhere on the body Ringworm of the scalp can also [childrensnational.org]

Folliculitis Decalvans

On DermNet NZ: Hair loss Folliculitis Diagnosis of scalp rashes Melanoma in skin of colour Other websites: Cicatricial Alopecia Research Foundation Tufted hair folliculitis [dermnetnz.org]

Pityriasis Rubra Pilaris

Pityriasis rubra pilaris most often starts as a patchy rash on the scalp, face or chest. [streetdirectory.com]

Itching and rashes Malaise: Generalized feeling of weakness, fatigue Anorexia Fever and chills The lesions usually start on the face and scalp. [dovemed.com]

PRP most often starts as a patchy rash on the scalp, face or chest. Over a period as short a several weeks it extends downward, and often covers much of the body. [aocd.org]

Langerhans-Cell Histiocytosis

May show up as a severe scalp rash, groin rash or as reddish-brown pinhead spots on the body. [kids-cancer.org]

[…] or cradle cap (a scalp rash often in infants) Ear pain or recurring ear infections Lethargy Low-grade fever Weight loss Diagnosing Langerhans cell histiocytosis requires [chop.edu]

Patients may have skin involvement with extensive seborrhia-like rashes on the scalp that mimic persistent cradle cap; an erythematous papular rash similar to Candida diaper [rarediseases.org]

Pediculosis Capitis

Less reliable signs of head lice include: small white eggs or nits (egg cases) in the hair behind the ears or at back of the neck an itchy scalp a rash on the back of the [nhsinform.scot]

Available at: https://bpac.org.nz/2017/dimethicone.aspx On DermNet NZ Body lice Pubic lice Insecticides Diagnosis of scalp rashes Other websites Head lice – Kidshealth.org.nz [dermnetnz.org]

One telltale sign of pediculosis capitis is a persistent itching of the scalp, which is sometimes accompanied by inflamed scratch marks or what appears to be a rash. [medigoo.com]

Psoriasis

The rash usually occurs on the scalp, elbows, knees, lower back and genitals, but it can appear anywhere. It can also affect the fingernails. [my.clevelandclinic.org]

More likely possibilities at this age include a bad case of seborrheic dermatitis or cradle cap (if it's on your toddler's scalp) or a bad diaper rash, if it's in his genital [babycenter.com]

These patches or plaques most often appear on the scalp, knees, elbows and lower back. They range from coin-size to palm-size. [psoriasis.org]

Chronic Mucocutaneous Candidiasis

A disfiguring rash may cover the face and scalp. The rash is crusted and thick and may ooze. On the scalp, the rash may cause hair to fall out. [merckmanuals.com]

Skin infections lead to a rash with crusty, thickened patches; when these patches occur on the scalp, they can cause loss of hair in the affected area (scarring alopecia). [ncbi.nlm.nih.gov]

Scalp lesions may result in scarring alopecia. Infants often present with refractory thrush, candidal diaper rash, or both. [merckmanuals.com]

Contact Dermatitis

Featured Poison ivy alert You can get a rash from poison ivy any time of the year. [aad.org]

Infants may have red, crusted, scaly areas on their cheeks, scalp, or the front of their arms and legs. [webmd.com]

Shade, clothing, and sunscreen Sun damage and your skin Aprenda a proteger su piel del sol Your hair Your scalp Nail care basics Manicures & pedicures Featured Practice Safe [aad.org]

Perifolliculitis Capitis Abscedens

What does dissecting cellulitis of the scalp look like? The rash looks like spots or lumps that ooze pus with overlying areas of hair loss and scarring. [unityskinclinic.com]

Impetigo and bullous impetigo are discussed in chapter 141, "Rashes in Infants and Children." [accessemergencymedicine.mhmedical.com]

It describes various different contagious fungal infections of the skin scalp or nails. Planning a trip to Houston?. [activethroughpassive.eu]

Tinea Favosa

Scalp ringworm causes itchy, red patches on your head. It can leave bald spots. It usually affects children. [icdlist.com]

Scalp ringworm causes itchy, red patches on your head. It can leave bald spots. [openmd.com]

Symptoms depend on the affected area of the body: Ringworm is a red skin rash that forms a ring around normal-looking skin. A worm doesn't cause it. [icdlist.com]

Secondary Syphilis

face, forehead and scalp. [ncbi.nlm.nih.gov]

Physical exam is significant for a diffuse, erythematous maculopapular rash, patchy alopecia on his scalp, wart-like white lesions on the base of his penis, and bilateral [step2.medbullets.com]

Other head and neck manifestations of secondary syphilis are related to the initial mucocutaneous rash (Fig. 3). [vertigoexercises.us]

Syphilis

A characteristic syphilitic rash on the palms of the hands. Image: CDC / Robert Sumpter. [blogs.discovermagazine.com]

If a rash develops on the scalp, hair may fall out in patches, making it appear moth-eaten. [merckmanuals.com]

In others, hair loss results in what has been described as a “moth-eaten” scalp, as if gnawed away by insects. [blogs.discovermagazine.com]

Pellagra

In newborns, it causes a thick, yellow, crusty scalp rash called cradle cap, which seems related to lack of biotin and is often curable. [en.wikipedia.org]

[…] with itching, but without hair loss.[21] In newborns, the condition causes a thick and yellowish scalp rash, often accompanied by a diaper rash. [en.wikipedia.org]

Itchy rash is particularly noticeable on the head and scalp, neck, inside of elbows, behind knees, and buttocks. It is very common in developed countries and rising. [en.wikipedia.org]

Impetigo

NOTE: This is the Professional Version. CONSUMERS: Click here for the Consumer Version Topic Resources Impetigo is a superficial skin infection with crusting or bullae caused by streptococci, staphylococci, or both. Ecthyma is an ulcerative form of impetigo. No predisposing lesion is identified in most patients, but[…] [merckmanuals.com]

Facial Seborrhea

Although in both adults and children the rash may have no symptoms, it commonly causes itching, especially in the scalp. [medicinenet.com]

Frequently, a stubborn diaper rash accompanies the scalp rash. [7] Usually, when it occurs in infants the condition resolves itself within days and with no treatment. [ citation [en.wikipedia.org]

Seborrheic Dermatitis

Frequently, a stubborn diaper rash accompanies the scalp rash. Older children and adults may develop a thick, tenacious, scaly scalp rash with large flakes of skin. [msdmanuals.com]

In infants younger than 1 month of age, seborrheic dermatitis may produce a thick, yellow, crusted scalp rash (cradle cap) and sometimes yellow scaling behind the ears and [msdmanuals.com]

Seborrhea-Like Dermatitis with Psoriasiform Elements

scalp. [uniprot.org]

[…] the chin, nasolabial folds and eyebrows, around earlobes and over the scalp. [malacards.org]

[…] on the face, particularly on the chin, nasolabial folds and eyebrows, around earlobes and over the scalp. [genecards.org]

Infantile Gluteal Granuloma

Langerhans histiocytosis Unwell infant, organomegaly, seborrheic dermatitis like lesions on the scalp, persistent diaper rash, petechia, pancytopenia, diagnostic biopsy(histiocytic [ncbi.nlm.nih.gov]

Infantile seborrhoeic dermatitis is a flexural rash that often involves the infant's eyebrows and scalp (cradle cap). [dermnetnz.org]

Infantile seborrhoeic dermatitis is a flexural rash that often involves the infant's eyebrows and scalp ( cradle cap ). [dermnetnz.org]

Clear Cell Squamous Cell Skin Carcinoma

Shade, clothing, and sunscreen Sun damage and your skin Aprenda a proteger su piel del sol Your hair Your scalp Nail care basics Manicures & pedicures Featured Practice Safe [aad.org]

[…] piercings Anti-aging skin care For your face For your skin routine Preventing skin problems Bites & stings Burns, cuts, & other wounds Itch relief Poison ivy, oak & sumac Rashes [aad.org]

Eczema

Frequently, a stubborn diaper rash accompanies the scalp rash. Older children and adults may develop a thick, tenacious, scaly scalp rash with large flakes of skin. [merckmanuals.com]

Infants and children usually develop facial rash, scalp, arms, legs, chest, or trunk. [goodmandermatology.com]

Dermatitis

Frequently, a stubborn diaper rash accompanies the scalp rash. Older children and adults may develop a thick, tenacious, scaly scalp rash with large flakes of skin. [merckmanuals.com]

Adult seborrhoeic dermatitis Seborrhoeic dermatitis affects scalp, face (creases around the nose, behind ears, within eyebrows) and upper trunk. [web.archive.org]

Herpes Zoster with Meningitis

A 74-year-old man developed a vesicular skin rash on the forehead, scalp, nose, and left upper eyelid with a severe headache. [epistemonikos.org]

Tinea Capitis

Scalp ringworm is a fungal infection that causes a scaly rash or patch of hair loss on the scalp. [msdmanuals.com]

Siblings with an itchy scalp or scalp rash should be examined. Pets with a skin rash or sores should be examined by a vet. [summitmedicalgroup.com]

They may look at your scalp with a UV light, because ringworm glows under UV light and other rashes don't. [msdmanuals.com]

Pityriasis Capitis

Australas J Dermatol. 1985; 26: 41 On DermNet NZ Diagnosis of scalp rashes Scalp psoriasis Seborrhoeic dermatitis Other websites Pityriasis amiantacea – Therapeutics in Dermatology [dermnetnz.org]

[…] dermatitis red or silver rash on scalp, sometimes with patchy hair loss tinea capitis, known as ringworm dry, red, flaky and very itchy skin on areas of the body eczema red [nhs.uk]

Synonyms: seborrhoeic eczema Seborrhoeic dermatitis (SD) is a common, benign scaling rash. [patient.info]

Tinea barbae and Tinea capitis

Sometimes the rash grows, spreads, or there's more than 1 rash. Ringworm on the face or scalp may also cause patchy hair loss. [nhs.uk]

Credit: SCIENCE PHOTO LIBRARY The rash is usually ring-shaped, unless it's on your face, neck or scalp Credit: DR P. [nhs.uk]

[…] on his scalp and feet. [medbullets.com]

Pityriasis Circinata

Symptoms of scalp ringworm may include: Red, scaly rash on the scalp Itching of the scalp Hair loss on the scalp Rash elsewhere on the body Ringworm of the scalp can also [chop.edu]

Skin Carcinoma

Shade, clothing, and sunscreen Sun damage and your skin Aprenda a proteger su piel del sol Your hair Your scalp Nail care basics Manicures & pedicures Featured Practice Safe [aad.org]

[…] piercings Anti-aging skin care For your face For your skin routine Preventing skin problems Bites & stings Burns, cuts, & other wounds Itch relief Poison ivy, oak & sumac Rashes [aad.org]

Dermatitis Herpetiformis

On DermNet NZ Dermatitis herpetiformis – pathology Gluten-sensitive enteropathy in patients with dermatitis herpetiformis Diagnosis of scalp rashes Direct immunofluorescence [dermnetnz.org]

Neonatal Lupus Erythematosus

They are observed in more than 90% of cases and usually appear as a superficial inflammatory rash on the upper eyelids and scalp resembling the rash seen in older patients [rheumatologyadvisor.com]

In many cases, according to 2004 research, it may take a few weeks for the rash to appear on the face, scalp, upper back, or chest. [healthline.com]

The rash can appear at any site but is most commonly seen on the scalp, face, neck. [cureus.com]