Sweating is heavy perspiration that can happen at night or even when the room is cool. It can be heavy enough to soak a person’s clothes. Such sweating is common when a fever breaks. You may notice sweating a short time after the person has shaking chills. (See the section called Fever.)
You can have a fever with or without a known infection. Sometimes no fever is detected, only the sweating that goes along with a drop or break in fever.
Swelling (edema) is a build-up of water in the tissues. Common causes include salt and water retention (due to medicines or heart, liver, or kidney failure), poor nutrition, pelvic tumors, or a blockage in the veins or lymph system. Fluid can also build up in the abdomen (belly). This is known as ascites (as-sigh-tees). It makes the belly look swollen.