Are bruises a sign of cancer?

In some cases, but not always. Bruises can occur for a variety of reasons, including injury, trauma, or certain medical conditions. If you notice unexplained bruising or your existing bruises take longer to heal than normal, it is always advisable to consult with a healthcare professional to rule out any underlying health concerns, including cancer. However, it is important to remember that the majority of bruises are not a sign of cancer.