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Risks
By Mayo Clinic staffNeedle biopsy carries a small risk of bleeding and infection at the site where the needle was inserted. Some mild pain can be expected after needle biopsy, though it may be controlled with over-the-counter pain relievers or prescription medications.
Call your doctor if you experience:
- Fever
- Pain at the biopsy site that worsens or isn't helped by medications
- Swelling at the needle biopsy site
- Drainage from the biopsy site
- Bleeding that doesn't stop with pressure or a bandage
Seek medical help right away if you experience:
- Lightheadedness or fainting
- Difficulty swallowing
- Shortness of breath
- Weakness or numbness in your legs
