![]() Small groupings of dark, red spots are a symptom. This is an inherited disorder that involves a gene mutation. This is a rare, hereditary condition that causes noncancerous blemishes to form on the lower torso. ![]() Wartlike blemishes form on the skin that are oily, smelly, and hard to the touch. Certain hereditary conditions can also cause blemishes to occur. This condition is caused by an overgrowth of yeast and causes pustules to form. These include malassezia folliculitis (fungal acne), an infection in the hair follicles. InfectionsĬertain types of skin infections can cause blemishes to erupt on the skin. The varicella-zoster virus (VZV) causes chickenpox. Some blemishes, like cold sores, are caused by viruses, such as HSV-1. hormonal changes, such as during pregnancy.HyperpigmentationĪn overproduction of melanin can cause uneven skin tone or dark patches. When the blisters open and drain, a red or yellow scab forms until they heal. They may itch or cause a tingling sensation. They’re fluid-filled blisters which are found on or near the mouth. The herpes simplex virus type 1 (HSV-1) causes cold sores. Anything that causes the skin to open can lead to scarring, such as a wound or popped pimples. The dermis is the deep layer of skin where small blood vessels (capillaries), sweat glands, hair follicles, and nerve endings are located. Scarring of the skin occurs when the dermis layer becomes damaged. They may appear as bumps of varying sizes on or under the skin. They include:Ĭysts are benign (noncancerous) sacs that contain a substance, such as fluid. There are several different types of cysts. Only your doctor can tell for sure if a blemish is skin cancer. Others look like yellow scabs or raised red bumps. Some forms of skin cancer look like dark moles with irregular borders. Skin cancers can range in appearance and in color. There are several types of skin cancers, including: It can be brought about by sun exposure and hormonal changes. It’s a skin condition identified by brownish patches. Other types, such as hemangiomas and salmon patches, tend to fade over time. Moles and port-wine stains are types of birthmarks that typically last for life. They can range in appearance, size, shape, and color. Birthmarksīirthmarks typically occur either at birth or shortly afterward. They may be uncomfortable or painful to the touch. These can be red, yellow, or white in appearance. Ingrown hairs can also turn into large, fluid-filled ingrown hair cysts. People with curly hair may be more susceptible to ingrown hairs than those with straight hair. These are hairs that grow back into the skin and become trapped. Hair removal techniques, such as tweezing, waxing, or shaving, can sometimes result in ingrown hairs. Other conditions that might cause pustules to form include scabiesand rosacea, a common skin condition marked by blisters and visible blood vessels. Whiteheads and chickenpox blisters are types of pustules. ![]() Age spots are a type of hyperpigmentation. They’re most common in people over 50, but they can also occur in younger people. These small, dark spots can form on any area of the body that’s been exposed to the sun. Skin tags and warts are examples of nodules. They can vary in color from flesh-toned to red. Nodules can occur at any level of the skin. They’re hard to the touch larger than papules, usually 1 to 2 centimeters in diameter. Psoriasis and shingles may also cause papules to form. Papules can occur individually or in clusters and can be any shape. Pimples are sometimes referred to as papules. They can range in color from pink and to brown. ![]() They’re typically around 1 centimeter in diameter. Papules are small skin lesions of varying types. Stress may also make acne worse by increasing sebum production, although it’s not considered to be a root cause of this condition. Hormonal changes are thought to play a role in the formation of acne. Acne can sometimes leave dark spots, pockmarks, or scarring on the skin. Acne can appear as:Īcne is caused when sebum (oil), bacteria, or dirt clogs hair follicles. “Blemish” is a broad term that refers to any type of skin mark. ![]()
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