A urinary tract infection (UTI) can occur in any part of the urinary tract. Bacteria cause the vast majority of UTIs. Fungi or viruses can also cause UTIs. UTIs are the second most common type of infection in humans.
Cellulitis is an infection of the deeper layers of the skin and the underlying tissue. Cellulitis is an infection of the deeper layers of the skin and the underlying tissue. The main symptom of cellulitis is the affected area of skin suddenly turning red, painful swollen and hot. Cellulitis can have a wide range of causes, but the majority of cases are caused by a type of bacteria called group A streptococcus, or a different type of bacteria called staphylococcus aureus.
The legs and face are the most common sites involved, though cellulitis can occur on any part of the body. The leg is typically affected following a break in the skin. Other risk factors include obesity, leg swelling, and old age. For facial infections, a break in the skin beforehand is not usually the case.