What is bruise after tb test?

Bruising after a TB test is a common occurrence. The test involves injecting a small amount of fluid called tuberculin under the skin, which can cause minor bruising at the injection site. This bruise usually lasts for a few days and gradually fades away. It is not a cause for concern as long as it is not accompanied by other symptoms such as swelling, redness or pain. Patients may also experience itching and discomfort around the site of the injection, but this should also go away on its own within a few days. If the bruise persists or other symptoms develop, it is recommended to consult a healthcare professional.