A patch is a larger, flat, non-palpable area of altered skin coloration or texture, while a macule is a small, distinct, flat spot on the skin that is solely a color change.
Nearly all reactions go faster as the temperature increases — exothermic reactions included. The reaction between oxygen in the air and the chemicals in the tip of a match, for example, is so slow at room temperature that nothing seems to happen. When you heat up the tip of the match by...
An abscess is a collection of pus on or under the skin that results due to an infection caused by bacteria (Staphylococcus aureusandStreptococcuspyogenes). Rarely, a parasitic infection may cause abscess development. A sterile abscess is when an abscess develops due to a foreign body in the tis...
A melanotic macule is a small dark spot on the skin that's typically benign, but can sometimes be cancerous. The warning signs of...