Seborrheic dermatitis, also known as seborrhea, sebopsoriasis, seborrheic eczema, dandruff and pityriasis capitis, 1 is a chronic, relapsing and usually mild dermatitis. Typically, seborrheic dermatitis presents with scaly, flaky, itchy, and red skin. Other symptoms include patchy scaling or thick crusts on the scalp, red, greasy skin covered with flaky white or yellow scales, itching, soreness and yellow or white scales that may attach to the hair shaft. Itching is not common among infants. Dandruff is a condition of the scalp that causes flakes of skin to appear. The person may have severe seborrheic dermatitis or another condition that has dandruff symptoms. Often referred to as cradle cap, signs and symptoms may appear when the baby is between 2 weeks and 6 months of age, especially between the ages of 3 to 8 weeks – this usually disappears after a few weeks; in some cases it may take months. Blepharitis is a common eye condition that is not specific to any one group of people.
Seborrheic dermatitis is a rash that appears in patches of redness and scaling around the eyebrows, eyelids, mouth, nose, trunk, and behind the ears. Other common causes of a rash include:. Psoriasis — tends to occur as red, scaly, itchy patches over joints and along the scalp. It appears as red sores that turn into blisters, ooze, then crust over. Do you have any other symptoms, like itching or scaling? Itching scalp can be caused by a number of conditions, including dandruff, seborrhoeic dermatitis and psoriasis. The usual response is to scratch, and this will often cause scratch marks and little crusty sores throughout the scalp. While seborrhoeic dermatitis tends to involve almost all the scalp, psoriasis often occurs in small, localised patches of redness with quite prominent thick scaling. Some of these disorders are infections, some are allergic reactions or other immune responses, and all involve some degree of inflammation (see What is Inflammation?). The anatomical proximity of sebaceous glands and hair follicles explains why oily skin and oily hair usually occur together in seborrhea. The most common first symptom of infestation with head lice is intense itching.
Dandruff is a very common skin condition that affects the scalp, ears, eyebrows, sides of the nose, beard, and less commonly the central (often hair bearing) part of the chest. Dandruff typically looks like dry, fine flaky skin on the scalp with areas of pink or red, inflamed skin. If dandruff is worsening (spreading, causing hair loss, increasing redness, painful, infected) despite proper skin care and hair hygiene, call your heath care provider or dermatologist for an office appointment. A very small piece of skin may be taken for microscopic exam to exclude other causes like psoriasis, lupus, and skin diseases. Dandruff or an itching or peeling scalp may cause embarrassment and discomfort. Other possible causes for excessive hair loss, thinning, or breakage include:. It usually causes a rash made up of circular patches with raised, red edges that resemble worms. Acne is the most common skin condition for which people seek treatment. Patches can be elevated, crusty, and wart-like. Seborrheic dermatitis causes scaly patches, red skin, and stubborn dandruff.
Seborrheic dermatitis appears as red, inflamed skin covered by greasy or dry scales that may be white, yellowish, or gray. Pityrosporum ovale, a species of yeast normally found in hair follicles, has been proposed as one possible causative factor., dermatitis seborrheicaa common scaly macular eruption that occurs primarily on the face, scalp (dandruff), and other areas of increased sebaceous gland secretion, especially during infancy and after puberty; the lesions are covered with a slightly adherent oily scale. Blepharitis refers to the group of conditions characterised by inflammation of the eyelid margin. 1 Blepharitis can be acute or chronic and can occur at all ages but the most commonly encountered variant is chronic adult disease. All forms are equally common in both sexes, other than staphylococcal blepharitis, which is more common in women. May be signs of seborrhoeic dermatitis elsewhere – for example, the scalp, ear or skin folds. Skip to main content. Scalp psoriasis causes redness and scaliness, which may also involve the hairline, the forehead, behind the ears and the back of the neck. It can range from very mild with slight fine scaling to very severe, crusted thick scaling covering the entire scalp. Hair usually grows back once the inflammation and scale has cleared. Psoriasis and seborrheic dermatitis can both cause an itchy, flaky scalp, but they have different treatments. Before you can figure out how to treat this symptom, you have to identify the cause. Psoriasis looks like patches of thick, red skin with silvery scales. Psoriasis and seborrheic dermatitis of the scalp share many common symptoms. Symptoms include, itching in groin, thigh skin folds, or anus, with red, raised, scaly patches that may blister and ooze. Less common causes of hives include friction, pressure, temperature extremes, exercise, and sunlight. Heat rash looks like tiny bumps surrounded by an area of red skin. The scaly patches commonly caused by psoriasis, called psoriatic plaques, are areas of inflammation and excessive skin production. Seborrheic dermatitis is a skin condition that causes redness and scaly skin. It occurs very frequently with rosacea, though the conditions are unrelated. The main symptoms of rosacea include:. Seborrheic dermatitis most commonly appears inside the ears, on the forehead, in the eyebrows, and around the nose. The absence of acne-like bumps is another big difference.
Skin conditions such as rashes, dry skin, dandruff, eczema, and fungal infections have symptoms that can look like psoriasis. To distinguish psoriasis from these and other skin conditions, it is helpful to know how psoriasis itself can appear. It causes symmetrical, well-defined, itchy, bright red, raised patches, or plaques, which are covered by silvery scales. Inverse psoriasis is so named because it’s most common in areas usually spared by the more common plaque-like psoriasis. Scalps that are crusty are also typically red and itchy. These conditions can sometimes be difficult to differentiate from one another since crusting, scaling, itching and scalp redness are features of both conditions. Psoriasis of the scalp usually involves areas of the body other than the scalp, whereas seborrheic dermatitis is often confined to the scalp and face. Causes. Psoriasis. The cause of this sometimes disabling skin and scalp condition isn’t completely understood. What’s the difference between Eczema and Psoriasis? Eczema is a combination of genetic and external factors, but the most common occurrence is usually a response to environmental or other external factors, say heat or exposure to products containing harsh chemicals. A problem with the immune system causes psoriasis. Symptoms of eczema include itchy, inflamed and red skin, swelling and cracking of the skin, scaling, blisters, red crusty rash on cheek, blisters or rashes on the arms or legs, rashes near the joints especially behind the knees and inside the elbows. When a client comes to you for service with what looks like some type of skin disorder, how do you handle it? Does your salon have a sound policy regarding servicing clients with a skin disorder? Refusing to service a client and referring her to a physician is the surest way to either lose a client or gain her eternal loyalty. Many Skin Disorders Have Environmental Causes. Hand eczema is a technical name for irritation of the skin and hands. For example, sunlight in moderation usually helps people with psoriasis, but it could be a mistake to recommend a few tanning sessions to your client with psoriasis because about 10 of psoriasis patients are adversely affected by any amount of sunlight.
‘Dermatitis’ is a red, itchy, flaky (inflamed) skin complaint; ‘seborrhoeic’ means that the rash affects greasy (sebaceous) skin zones such as the face, scalp and centre of the chest. Seborrhoeic dermatitis is very common and many people don’t even know they have it. What causes it? In psoriasis, the scales are thicker and whiter and the face is not usually affected. For example, the differential diagnosis of the papulosquamous reaction pattern includes psoriasis, seborrheic dermatitis, lichen planus, pityriasis rosea, drug eruption, tinea corporis, secondary syphilis, and cutaneous T-cell lymphoma. Psoriasis is a common inflammatory scaling dermatosis with a bilateral symmetric distribution that may be associated with a seronegative spondyloarthropathy. Dandruff or mild seborrheic dermatitis is usually well controlled with regular use (2-3 times weekly) of therapeutic shampoos containing selenium sulfide (1, 2. 10) Chronic eczema may be plaque-like (lichen simplex chronicus) or nodular (prurigo nodularis). Psoriasis patches can range from a few spots of dandruff-like scaling to major eruptions that cover large areas. The most common form, plaque psoriasis causes dry, raised, red skin lesions (plaques) covered with silvery scales. Although the disease usually isn’t as crippling as other forms of arthritis, it can cause stiffness and progressive joint damage that in the most serious cases may lead to permanent deformity. Seborrheic dermatitis.