Things that increase risk for shingles include:
- Having had chickenpox. You must have had chickenpox to get shingles.
- Being older than 50.
- Having a weakened immune system due to another disease, such as diabetes or HIV infection.
- Experiencing stress or trauma.
- Having cancer or receiving treatment for cancer.
- Taking medicines that affect your immune system, such as steroids or medicines that are taken after having an organ transplant.
If a pregnant woman gets chickenpox, her baby has a high risk for shingles during his or her first 2 years of life. And if a baby gets chickenpox in the first year of life, he or she has a higher risk for shingles during childhood.1
Postherpetic neuralgia (PHN) is a common complication of shingles that lasts for at least 30 days and may continue for months or years. You can reduce your risk for getting shingles and developing PHN by getting the shingles vaccine.