           Sweat glands       Open pop-up dialog box          Close    Sweat glands   Sweat glands Eccrine sweat glands occur over most of the body and open directly onto the skin's surface. Apocrine glands open into the hair follicle, leading to the surface of the skin. Apocrine glands develop in areas with many hair follicles, such as on the scalp, armpits and groin. Eccrine sweat glands are involved in hyperhidrosis, though apocrine glands may play a role as well.               Sweat glands       Open pop-up dialog box           Sweat glands       Open pop-up dialog box  Open pop-up dialog box       Close    Sweat glands   Sweat glands Eccrine sweat glands occur over most of the body and open directly onto the skin's surface. Apocrine glands open into the hair follicle, leading to the surface of the skin. Apocrine glands develop in areas with many hair follicles, such as on the scalp, armpits and groin. Eccrine sweat glands are involved in hyperhidrosis, though apocrine glands may play a role as well.          Close    Sweat glands   Sweat glands Eccrine sweat glands occur over most of the body and open directly onto the skin's surface. Apocrine glands open into the hair follicle, leading to the surface of the skin. Apocrine glands develop in areas with many hair follicles, such as on the scalp, armpits and groin. Eccrine sweat glands are involved in hyperhidrosis, though apocrine glands may play a role as well.        Close    Sweat glands   Sweat glands Eccrine sweat glands occur over most of the body and open directly onto the skin's surface. Apocrine glands open into the hair follicle, leading to the surface of the skin. Apocrine glands develop in areas with many hair follicles, such as on the scalp, armpits and groin. Eccrine sweat glands are involved in hyperhidrosis, though apocrine glands may play a role as well.     Close    Close  Close Sweat glands   Sweat glands Eccrine sweat glands occur over most of the body and open directly onto the skin's surface. Apocrine glands open into the hair follicle, leading to the surface of the skin. Apocrine glands develop in areas with many hair follicles, such as on the scalp, armpits and groin. Eccrine sweat glands are involved in hyperhidrosis, though apocrine glands may play a role as well.  Sweat glands Eccrine sweat glands occur over most of the body and open directly onto the skin's surface. Apocrine glands open into the hair follicle, leading to the surface of the skin. Apocrine glands develop in areas with many hair follicles, such as on the scalp, armpits and groin. Eccrine sweat glands are involved in hyperhidrosis, though apocrine glands may play a role as well. Eccrine sweat glands occur over most of the body and open directly onto the skin's surface. Apocrine glands open into the hair follicle, leading to the surface of the skin. Apocrine glands develop in areas with many hair follicles, such as on the scalp, armpits and groin. Eccrine sweat glands are involved in hyperhidrosis, though apocrine glands may play a role as well. Adults usually develop heat rash in skin folds and where clothing rubs against the skin. In infants, the rash is mainly found on the neck, shoulders and chest. It can also show up in the armpits, elbow creases and groin. Types of heat rash The types of heat rash are classified according to how deep the sweat is trapped in the skin. Signs and symptoms for each type vary.  The mildest form of heat rash is called miliaria crystallina. It occurs when the opening of the sweat duct on the surface of the skin (sweat pore) is blocked. This form is marked by tiny, clear, fluid-filled bumps that break easily. A type that occurs deeper in the skin is called miliaria rubra. It is sometimes called prickly heat. Signs and symptoms include small, inflamed blister-like bumps and itching or prickling in the affected area. Occasionally, the inflamed bumps of miliaria rubra fill with pus. This form is called miliaria pustulosa. A less common form of heat rash is called miliaria profunda. It affects the deepest layer of the skin (dermis). It causes firm, painful or itchy inflamed bumps that look like goose bumps and may break open. 
           sweat glands       open pop-up dialog box          close    sweat glands   sweat glands eccrine sweat glands occur body open directly skin's surface  apocrine glands open hair follicle  leading surface skin  apocrine glands develop areas hair follicles  scalp  armpits groin  eccrine sweat glands involved hyperhidrosis  apocrine glands may play role well                sweat glands       open pop-up dialog box           sweat glands       open pop-up dialog box  open pop-up dialog box       close    sweat glands   sweat glands eccrine sweat glands occur body open directly skin's surface  apocrine glands open hair follicle  leading surface skin  apocrine glands develop areas hair follicles  scalp  armpits groin  eccrine sweat glands involved hyperhidrosis  apocrine glands may play role well           close    sweat glands   sweat glands eccrine sweat glands occur body open directly skin's surface  apocrine glands open hair follicle  leading surface skin  apocrine glands develop areas hair follicles  scalp  armpits groin  eccrine sweat glands involved hyperhidrosis  apocrine glands may play role well         close    sweat glands   sweat glands eccrine sweat glands occur body open directly skin's surface  apocrine glands open hair follicle  leading surface skin  apocrine glands develop areas hair follicles  scalp  armpits groin  eccrine sweat glands involved hyperhidrosis  apocrine glands may play role well      close    close  close sweat glands   sweat glands eccrine sweat glands occur body open directly skin's surface  apocrine glands open hair follicle  leading surface skin  apocrine glands develop areas hair follicles  scalp  armpits groin  eccrine sweat glands involved hyperhidrosis  apocrine glands may play role well   sweat glands eccrine sweat glands occur body open directly skin's surface  apocrine glands open hair follicle  leading surface skin  apocrine glands develop areas hair follicles  scalp  armpits groin  eccrine sweat glands involved hyperhidrosis  apocrine glands may play role well  eccrine sweat glands occur body open directly skin's surface  apocrine glands open hair follicle  leading surface skin  apocrine glands develop areas hair follicles  scalp  armpits groin  eccrine sweat glands involved hyperhidrosis  apocrine glands may play role well  adults develop heat rash skin folds clothing rubs skin  infants  rash mainly found neck  shoulders chest  can show armpits  elbow creases groin  types heat rash types heat rash classified according deep sweat trapped skin  signs symptoms type vary   mildest form heat rash called miliaria crystallina  occurs opening sweat duct surface skin (sweat pore) blocked  form marked tiny  clear  fluid-filled bumps break easily  type occurs deeper skin called miliaria rubra  called prickly heat  signs symptoms include small  inflamed blister-like bumps itching prickling affected area  occasionally  inflamed bumps miliaria rubra fill pus  form called miliaria pustulosa  common form heat rash called miliaria profunda  affects deepest layer skin (dermis)  causes firm  painful itchy inflamed bumps look like goose bumps may break open
heat rash