What are the common causes of red lesions?

The term "lesion" is very wide; It can refer to any localized area of ​​damaged tissue or tissue that simply looks different from the surrounding tissue, whether inner or external or caused by physical trauma, infectious agent or inflammatory response. Red lesions of the skin are common symptoms for many conditions such as psoriasis, syphilis and allergic reactions. The common causes of red lesions generally depend on related symptoms such as fever, scaling on the skin or the shape of the lesion. They may indicate fungal infection such as tinea corporis or ringworm, granuloma Annulare that create bumpy rings without a known cause, or migrans , a rash that forms a small percentage of people at an early stage. pityriasis rosea is another condition that may cause the ring red lesion at the beginning and is suspected of being caused by a virus. Hives - known medically as urticaria - are an inflammatory response of immunuA system that can form rings.

Another diagnostic feature of red lesions is whether they contain a small raised area known as the papule, a larger, raised area called plaque or colored but flat area called Macule. Warts, acne, insect bite or sting, and some skin cancer can all cause papules. Plaque can be caused by allergic reactions, psoriasis, seborrorrorheic dermatitis or eczema. Flat birth, freckles and even tattoos are considered maculas along with conditions such as measles, rubella, intersections that are caused by disease. Rosacea usually includes macules and pustules, which is another formation of lesions of small red bumps with liquid and pus inside them.

In some cases, the diagnosis of red lesion IS helped the presence or absence of scaling. Lesions psoriasis can be red but often covered with strong whiteLou to silver spots of weight. Seborne dermatitis, fungal infection and eczema are characterized by the probability of scaling. In other cases, the location of red lesions may indicate the cause. The secondary phase of syphilis can produce rashes anywhere on the body, but the most common placement is on the palms and on the bottom of the legs. Seborrheic dermatitis occurs most in areas that tend to be greasy, such as the scalp, forehead and around the nose, because these areas have the highest concentration of sebaceous glands.