As you get older, you tend to lose some of the facial fat. This loss makes your face appear thinner and bonier. Medical conditions such as cancer, anorexia nervosa, bullimia nervosa, celiac disease, crohn's disease, ulcerative colitis and depression may cause unintentional weight loss and skinny face.
Dry skin (xerosis), eczema (dermatitis), psoriasis, scabies, parasites, burns, scars, insect bites, hives and internal diseases such as kidney disease, liver disease.
It may affect your whole body or be limited to a specific area â usually your back or arms. Itching tends to affects both sides of the body at the same time and may feel internal, like a crawling feeling just below the skin.
If your body makes too much melanin, your skin gets darker. Pregnancy, Addison's disease, and sun exposure all can make your skin darker.