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.
Cellulitis occurs when bacteria, most commonly streptococcus and staphylococcus, enter through a crack or break in your skin. The incidence of a more serious staphylococcus infection called methicillin-resistant Staphylococcus aureus (MRSA) is increasing.