Red spots on the skin: 25 possible causative diseases and symptoms

There are many skin diseases, each with its own causes of occurrence and also various symptoms treated by dermatology. However, of all the symptoms that can occur, there is one that recurs often: red spots on the skin.

These spots do not necessarily have to indicate that there is a serious illness, in fact, sometimes they appear as an effect of certain medications or due to stress, although in others it could indicate that you are suffering from an illness as well. serious than skin cancer.

If these types of spots appear on our skin, it is advisable to go to a dermatologist to make a diagnosis and make sure that nothing serious is happening, and thus rule out one of the possible causes that we will discover below. below.

    Features of red spots on the skin

    The skin is the largest organ in the human body. Long, and never better said. If we slaughtered an adult of average height we would have more than two square meters of extension, and a somewhat daunting scene, of course. The skin is the main barrier of our body because it prevents dangerous and pathogenic substances from getting inside. In addition to its great protective function, it also allows us to receive information from the external environment as it contains the sense of touch, made up of cells receiving stimuli such as textures, pressures, pains and even changes in temperature.

    The anatomy and physiology of the skin make this organ well protected, but it is not immune to pathologies. The constant exposure to threats from the outside, both in the form of pathogens and harmful substances, makes it possible to present pathologies and that is why we speak of dermatological diseases. There are many skin pathologies, with characteristic symptoms, but the one that is very often mentioned is that of red spots..

    There are many causes of red spots on the skin: infections, temperature changes, allergies, side effects of medication, autoimmune disorders, stress, etc. You should know that this is often a clinical sign that does not involve no gravity, that you don’t have to worry about seeing one even if you do go to a dermatologist to rule out any pathology.

    Main causes of red spots on the skin

    Red spots on the skin are the appearance of color changes in this organ. Areas appear where, with or without some type of lump or dermatological condition, the skin takes on a more or less intense reddish tint. These spots can be accompanied by other symptoms, such as itching, tingling, pain of varying intensity. These spots can be caused by a variety of medical conditions, making their treatment and severity quite varied.

    Below we will see the main pathologies that can cause the appearance of red spots on the skin.

    1. Rosacea

    Rosacea is a skin condition in which red areas appear on the face and in the visibility of blood vessels, although a large one filled with pus may also appear. There is a genetic predisposition to suffer from it and it is more common in middle-aged white women, especially of northern and eastern European origin, Germanic and Slavic descent. There is no cure, but there are treatments to relieve the symptoms.

    2. Allergic reaction

    Allergic reactions are more common than they seem. About 40% of the world’s population suffers from it, being the most common allergy to dust mites, pollen, animal hair and food. These are disproportionate immune reactions to exposure to the allergen, a substance that should not be harmful to the body but the body interprets it as such.

    Allergic skin reactions are very common and manifest as red spots. These spots can be prevented by avoiding exposure to the allergen and being treated with antihistamines.

      3. Contact dermatitis

      Contact dermatitis is inflammation and redness of the skin due to contact with an allergen. The substance to which you are allergic causes an irritant reaction on the skin, causing not only the appearance of the red spot but also itching, dryness, flakes or even blisters.

        4. The bites

        Insect bites can produce red spots where they have been bitten. Its appearance is due to the inflammatory reaction of the organism and to the action of certain substances released by biting insects.. Most bites are usually treated topically, with ointments readily available at any drugstore.

        5. Side effect of a drug

        Drugs are not harmless, sure. In addition to its therapeutic effect, they have several unwanted effects, and in many drugs red spots on the skin are one of them. Skin side effects are common, but usually not serious.

        6. Excess stress

        As surprising as it may seem to many, stress can cause red spots to appear on the skin. Some people, when going through an emotionally stressful situation, can somatize, manifesting physical symptoms and one is redness of the skin.

          7. Atopic dermatitis or eczema

          Atopic dermatitis, also called eczema or eczema, is a common skin disease in children who it is characterized by the appearance of red itchy spots. Its cause is usually genetic, making the skin unable to protect itself well from the elements and making it more susceptible to irritation. There is no cure, but there are ointments to relieve the itching.

          8. Seborrheic eczema

          Seborrheic eczema is a variety of dermatitis that usually occurs on the scalp, causing the appearance of red spots mainly on the scalp. It can also manifest in the mouth, nose, and ears.

          9. Diaper dermatitis

          Diaper rash is a disease specific to babies, being one of the most common neonatal illnesses. As indicated by his name, this consists of the skin of the diaper covered area that turns red and itchy. The cause is bacteria in the stool, which produce ammonia, a chemical that is irritating to the skin. It is easily avoided by changing baby’s diapers as soon as possible and, if they appear, treat them with ointments that relieve the itchiness.

          10. Tenia

          Ringworm is a skin disease caused by fungi that colonize the skin and produce lesions with red spots. Its spots usually appear on the back and shoulders. It is neither serious nor contagious, but it affects the quality of life of the injured person, although fortunately there are antifungal ointments. There are also specific drugs that are taken orally, although they are reserved for the most severe cases.

          11. Infectious cellulitis

          Infectious cellulitis (not to be confused with edematous cellulitis) is a dermatological disease that occurs due to bacterial infection and can lead to serious complications. This skin infection is most common in the legs, caused mainly by bacteria such as staphylococci or streptococci, which enter through a cut in the skin. Red spots appear in the cut area.

          It should be treated quickly with antibiotics as the bacteria can spread through the body and be life threatening.

            12. Gale

            Scabies is a dermatological disease caused by Sarcoptes scabiei, a mite that parasitizes the skin and which is transmitted by skin-to-skin contact. When this mite bites us, the symptoms manifest as red, itchy spots, which get worse at night. The flagship treatment for scabies consists of creams that are applied to the skin and manage to destroy both the mite and eggs.

            13. Skin cancer

            Skin cancer is a disease that occurs when a malignant tumor appears in the epidermis. The main cause is excessive exposure to solar radiation. It is the fifth most common oncological disease, with nearly one million cases diagnosed each year worldwide. Red spots can be a clinical sign of their appearance. If caught early, it can be treated with surgery, with a 98% chance of survival.

              14. Momentum

              Impetigo is a very contagious and common skin disease in children. Among its symptoms are the appearance of sores around the mouth and nose which, over time, become scabs.. It is caused by a bacterial infection that triggers inflammatory reactions, which are responsible for the red spots of the disease. Its treatment is quite effective because it is caused by bacteria and the main way to treat it is with the use of antibiotics.

              15. Lupus

              Systemic lupus erythematosus it’s an autoimmune disease. In this pathology, immune cells, due to hereditary programming failures, attack healthy cells in several organs and tissues, including the skin. Indeed, the skin is one of the areas most attacked, where the immune reaction causes the appearance of red rashes on the face, especially the cheeks and nose.

              Because its cause is genetic, it cannot be prevented or cured, but luckily there are treatments such as anti-inflammatory drugs, immunosuppressants, and corticosteroids that focus on relieving symptoms.

              16. Candidiasis

              Candidiasis is a skin condition caused by a fungus, specifically Candida albicans. This fungus normally inhabits our body but when certain conditions arise it can behave like a pathogen in our body.. When this happens, it causes a reddish rash to appear which is very itchy. Treatment involves applying antifungal creams to kill the fungus.

              17. Kawasaki disease

              Kawasaki disease mainly affects children under the age of 5 and manifests as inflammation of the walls of the middle arteries. It tends to affect the coronary arteries, which supply blood to the heart muscle, that is why it is considered a medical emergency if it occurs. We do not know what is the cause.

              This medical condition is also called mucocutaneous lymph node syndrome because it also affects the lymph nodes, which swell during infection. It also affects the skin and mucous membranes inside the mouth, nose and throat. The tongue acquires a very red tint and swells, causing a high fever, swelling, red palms and soles of the feet, and red eyes.

              Although its symptoms can be frightening and is considered a serious illness, it is generally treatable and most children recover without serious after-effects.

              18. Chickenpox

              varicella is a highly contagious disease caused by infection with the chickenpox virus in skin cells. It usually occurs during childhood because, after the first exposure, lifelong immunity develops.

              It is the sixth most contagious disease in the world and among its main symptoms is the appearance of a rash with red or pink papules. There is no treatment to clear the virus other than waiting for the body to fight the infection. However, there is a vaccine, and it is better to present the disease because in adults it can become very serious.

              19. Measles

              Measles is a life-threatening childhood illness that has not been completely eradicated today, despite what many believe. This contagious disease continues to be responsible for more than 100,000 child deaths each year and is caused by a virus of the Paramixovirus family which is transmitted by air. Its main symptoms are redness, although there is a risk of serious complications that prevent 10% of people who suffer from it from surviving.

              There is no cure for measles, but there is a vaccine.

              20. Psoriasis

              Psoriasis is a skin condition that occurs when the body produces too many skin cells, building up and causing red spots to form. There is no cure for this disease and she suffers chronically, although there are medications available to relieve the symptoms.

              21. Rubella X

              Rubella is a childhood illness of viral origin, similar to measles but not so serious or contagious. In fact, it can be very mild, so much so that there are no symptoms. However, when they do appear, their main clinical sign is the appearance of a pink granule. It is a mild disease for which there is no cure, but there is a vaccine to prevent infection.

              22. Scarlet fever or scarlet fever

              Scarlet fever can appear both at the same time as after being given strep throat infection. In this disease, red rashes can appear all over the body except the hands and feet. The rashes are small bumps that look like sandpaper. The tongue acquires a bright red tint.

              23. Fifth disease

              The fifth disease, more properly called infectious erythema, is a common disease in infants caused by parvovirus. The reason is that it was historically the disease number five on the list of childhood pathologies characterized by the appearance of a blister. It is also called the slap disease.

              The spots on the skin appear as a round, shiny rash on the cheeks which is accompanied by headache, fatigue, mild fever, sore throat, diarrhea, nausea and runny nose. The arms, legs and upper body burst with punctuated patterns.

              24. Milestone

              The milestone is also known as heat stroke. This skin disease occurs when the sweat ducts, that is, the pores of the skin, become blocked and sweat becomes trapped. Heat rash occurs when clogged pores (sweat ducts) leave sweat trapped under the skin. The red spots on the milestone are small in size and are usually accompanied by small red balls which cause burns and mainly appear on the face, neck, back, chest, and thighs.

              25. Zika virus

              Zika causes slightly raised reddish spots which give food and which they usually appear about 4 days after being bitten by the mosquito that transmits this virus. The spots first appear on the face and then spread to the rest of the body within a few hours, for about 5 days.

              Bibliographical references

              • Ahmed, JU, Rahim, MA, Uddin, KN (2017) “Emerging viral diseases”. ResearchGate.
              • Ankad, B. (2017) “Red dots caught in the act: Dermoscopy of genital psoriasis”. Journal of clinical dermatology.
              • Arakelyan, HS (2019) “Strange skin diseases”. Clinical Dermatology.
              • Bianchi, J., Page, B., Robertson, S. (2011) “Common Skin Conditions Explained”. NHS.
              • Brind’Amour, K. (2020). Everything you need to know about common skin conditions. Health line.
              • Lowth, M. (2013) “Infectious Diseases in Children: Chickenpox”. Door of Research.
              • Schellack, N. (2011) “Rash in Children”. Door of Research.
              • Penedo, P. (2020). 7 very common skin diseases and their relation to genetics. Intercontinental ridges.
              • Putterman, C., Caricchio, R., Davidson, A., Perlman, H. (2012) “Systemic Lupus Erythematosus”. Clinical and developmental immunology.
              • Sehgal, VN (2016) “Diagnosis and treatment of common skin diseases”. ResearchGate.

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