Key points
- This website focuses on the kinds of E. coli that cause diarrhea.
- Symptoms depend on the kind of E. coli causing the infection.
- Symptoms can include stomach cramps, vomiting, and fever.
- E. coli infection can lead to other health problems.
Symptoms
Symptoms depend on the kind of E. coli causing the infection.
Most people with E. coli infection have:
- Diarrhea that can be bloody or watery
- Stomach cramps that can be severe
Some people also have vomiting or a low fever.
When to talk to your doctor
Call your doctor if you have these symptoms
- Diarrhea or vomiting lasting more than 2 days
- Bloody poop or pee
- A fever higher than 102°F
- Signs of dehydration (listed below)
- Signs of hemolytic uremic syndrome (listed below)
What to look for
Dehydration
Dehydration is not having enough fluids in the body. If you have diarrhea or vomiting, be sure to drink plenty of fluids. Dehydration can happen quickly in young children. Give children with diarrhea or vomiting extra fluids, such as Pedialyte® or oral rehydration salts. Do not wait.
Sign of dehydration include little or no peeing, having very dark pee, being very thirsty, having a dry mouth or throat, feeling dizzy or lightheaded, and crying without tears.
Hemolytic uremic syndrome
Infection with Shiga toxin-producing E. coli can trigger a serious health condition called hemolytic uremic syndrome (HUS). HUS can lead to kidney failure, permanent health problems, and even death.
HUS is a medical emergency. Signs of HUS include little or no peeing, losing pink color in cheeks and inside the lower eyelids, unexplained bruising or rash of tiny red spots, blood in pee, feeling very tired or being irritable (cranky), and decreased awareness (alertness).
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