A blister is a small pocket of body fluid within the upper layers of the skin, usually caused by forceful rubbing (friction), burning, touching poison ivy, freezing, chemical exposure or infection. Most blisters are filled with a clear fluid, either serum or plasma. However, blisters can be filled with blood or with pus.
A callus is an area of thickened and sometimes hardened skin that forms as a response to repeated friction, pressure, or other irritation. Since repeated contact is required, calluses are most often found on the feet and hands, but they may occur anywhere on the skin. Some degree of callus, such as on the bottom of the foot, is normal.
Petroleum jelly, petrolatum, white petrolatum, soft paraffin, or multi-hydrocarbon, CAS number 8009-03-8, is a semi-solid mixture of hydrocarbons, originally promoted as a topical ointment for its healing properties. Vaseline has been an American brand of petroleum jelly since 1870.
Irritation, in biology and physiology, is a state of inflammation or painful reaction to allergy or cell-lining damage. A stimulus or agent which induces the state of irritation is an irritant. Irritants are typically thought of as chemical agents but mechanical, thermal (heat), and radiative stimuli can also be irritants. Irritation also has non-clinical usages referring to bothersome physical or psychological pain or discomfort.
Tinea cruris, also known as jock itch, is a common type of contagious, superficial fungal infection of the groin and buttocks region, which occurs predominantly but not exclusively in men and in hot-humid climates.
A rash is a change of the human skin that affects its color, appearance, or texture.
Miliaria, commonly known as heat rash, sweat rash, or prickly heat, is a skin disease marked by small, itchy rashes due to sweat trapped under the skin by clogged sweat-gland ducts. Miliaria is a common ailment in hot and humid conditions, such as in the tropics and during the summer. Although it affects people of all ages, it is especially common in children and infants due to their underdeveloped sweat glands.
A rash guard, also known as rash vest or rashie, is an athletic shirt made of spandex and nylon or polyester. The name rash guard reflects the fact that the shirt protects the wearer against rashes caused by abrasion, or by sunburn from extended exposure to the sun, as sun protective clothing.
Intertrigo refers to a type of inflammatory rash (dermatitis) of the superficial skin that occurs within a person's body folds. These areas are more susceptible to irritation and subsequent infection due to factors that promote skin breakdown such as moisture, friction, and exposure to bodily secretions and excreta such as sweat, urine, or feces. Areas of the body which are more likely to be affected by intertrigo include the inframammary fold, intergluteal cleft, armpits, and spaces between the fingers or toes. Skin affected by intertrigo is more prone to infection than intact skin.
Pasties are patches that cover a person's nipples and areolae, typically self-adhesive or affixed with adhesive. They originated as part of burlesque shows, allowing dancers to perform fully topless without exposing the nipples in order to provide a commercial form of bare-breasted entertainment. Pasties are also, at times, used while sunbathing, worn by strippers and showgirls, or as a form of protest during women's rights events such as Go Topless Day. In some cases this is to avoid potential prosecution under indecency laws.
Cycling shorts are short, skin-tight garments designed to improve comfort and efficiency while cycling.
Meralgia paresthetica or meralgia paraesthetica is numbness or pain in the outer thigh not caused by injury to the thigh, but by injury to a nerve that extends from the spinal column to the thigh.
Erythrasma is a superficial skin infection that causes brown, scaly skin patches. It is caused by Corynebacterium minutissimum bacteria, a normal part of skin flora.
Outdoor recreation, such as hiking, camping, canoeing, cycling, or skiing, entails risks, even if participants do not recklessly place themselves in harm's way. In some circumstances, such as being in remote locations or in extreme weather conditions, even a minor accident may create a dangerous situation that requires survival skills. However, with correct precautions, even fairly adventurous outdoor recreation can be enjoyable and safe.
Layered clothing is the wearing of multiple garments on top of each other.
Pruritus ani is the irritation of the skin at the exit of the rectum, known as the anus, causing the desire to scratch. The intensity of anal itching increases from moisture, pressure, and rubbing caused by clothing and sitting. At worst, anal itching causes intolerable discomfort that often is accompanied by burning and soreness. It is estimated that up to 5% of the population of the United States experiences this type of discomfort daily.
A friction burn is a form of abrasion caused by the friction of skin rubbing against a surface. A friction burn may also be referred to as skinning, chafing, or a term named for the surface causing the burn such as rope burn, carpet burn or rug burn. Because friction generates heat, extreme cases of chafing may result in genuine thermal burning of the outer layers of skin.
Brushing boots or splint boots are used to protect a horse's legs during exercise, protecting the lower leg from injury that may occur if one leg or hoof strikes the opposite leg. They are commonly seen on horses in fast work, such as jumping, when in training, such as when longeing, or in competitions such as reining or eventing. Brushing injuries are more common on the forelegs, when one hoof catches the other leg, or when the fetlock or cannon bones hit each other. This can cause a serious injury on a horse's legs, especially if the horse is wearing shoes. Poor equine conformation can often lead to brushing, although even properly-conformed horses can also accidentally injure themselves. Brushing boots may also be placed on horses in the field to protect them if they get overly excited. Other reasons for use may include placement on a young or unfit horse which may be excitable and step on itself, or on horses subject to intense work that may stumble more if they are tired.
Acne mechanica is an acneiform eruption that has been observed after repetitive physical trauma to the skin such as rubbing, occurring from clothing or sports equipment. In addition to those mechanisms, the skin not getting enough exposure to air also contributes to the formation of acne mechanica. It is often mistaken as a rash that forms on sweaty skin that is constantly being rubbed, but in reality, it is a breakout of acne mechanica. The term "acne" itself describes the occurrence in which hair follicles in the skin get clogged by oil, dead skin cells, dirt and bacteria, or cosmetic products and create a pimple. Pimples can vary in type, size, and shape, but the sole basis of them occurring is the same - the oil gland in the pore becomes clogged and sometimes infected, which creates pus in order to fight the infection and subsequently causes the development of swollen, red lesions on the skin.
Cracked nipple is a condition that can occur in breastfeeding women as a result of a number of possible causes. Developing a cracked nipple can result in soreness, dryness or irritation to, or bleeding of, one or both nipples during breastfeeding. The mother with a cracked nipple can have severe nipple pain when the baby is nursing. This severe pain is a disincentive for continued breastfeeding. The crack can appear as a cut across the tip of the nipple and may extend to its base. Cracked nipple can develop after the birth of the infant and is managed with pharmacological and nonpharmacological treatment.
