Edema refers to the swelling that occurs due to the accumulation of fluid in different tissues of the body, particularly in the skin. Edema can develop for many reasons. However, due to the effect of gravity, it is most noticeable in the feet, ankles, and legs. During the sleep process at night, the edema in the legs spreads to other parts of the body, including the face. Upon waking in the morning, the edema is typically more pronounced in the face and hands. As daily activities begin, by the evening, the edema fluid moves down to the legs, and swelling becomes visible in these areas.

Systemic Lupus Erythematosus (SLE), or simply lupus, is a condition in which the immune system mistakenly perceives some substances in the body as foreign, leading to the initiation of a chronic inflammatory response that can affect almost every system in the body.

White blood cells, also known as leukocytes, derive their name from the Latin words leucko (white) and cyte (cell). These cells play a crucial role in the immune system's response to both internal and external factors. A decrease in the number of these cells is referred to as leukopenia. White blood cells are classified into five main groups: neutrophils, lymphocytes, monocytes, eosinophils, and basophils. These groups can be affected individually or separately depending on various diseases.

Vitamins, which are essential micronutrients, play a key role in energy metabolism, immune functions, blood clotting, and many other bodily functions.

CRP is one of the commonly seen parameters in blood tests and is the abbreviation for "C-reactive protein," a type of protein.

"Kidney inflammation" or "kidney infection" refers to a type of urinary tract infection.

Kidney pain is felt as discomfort in the area surrounding the kidneys. The kidneys are located on both sides of the back, just beneath the ribs.

The proper functioning of the adrenal glands, which are located on top of the kidneys, is essential for the normal functioning of the human body and for a healthy life.