What are skin infections?
Your skin is your body’s largest organ. It has many different functions, including covering and protecting your body. It helps keep germs out. But sometimes the germs can cause a skin infection. This often happens when there is a break, cut, or wound on your skin. It can also happen when your immune system is weakened, because of another disease or a medical treatment.
Some skin infections cover a small area on the top of your skin. Other infections can go deep into your skin or spread to a larger area.
What causes skin infections?
Skin infections are caused by different kinds of germs. For example,:
- Bacteria cause cellulitis, impetigo, and staphylococcal (staph) infections
- Viruses cause shingles, warts, and herpes simplex
- Fungi cause athlete’s foot and yeast infections
- Parasites cause body lice, head lice, and scabies