So how are you to know which lumps and bumps are dangerous and which can be left alone?

所以，你是如何知道哪些肿块，肿块是危险的，可留一个人呢？

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Our bodies can develop various lumps and bumps, and when they are near the skin surface, they become noticeable.

我们的身体可以长出各种隆起及肿块，当它们靠近皮肤表面时，这变得引人注目。

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"Women in their 20s and 30s rarely get breast cancer," he says. "But they do have a lot more benign lumps and bumps."

“女性在20和30来岁很少得乳腺癌，”他说，“但是她们确实有很多的良性包块和肿块。”

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"If you're used to feeling your breasts and know your lumps and bumps, then keep doing it, but if they scare you or whatnot, don't make it happen, " she said.

CNN: Breast 'awareness' trumps self-exams, docs say

Everyone should be alert to the signs and symptoms of cancer - such as weight loss, persistent pain and lumps and bumps and visit their GP immediately if they have concerns.

BBC: Patient receiving chemotherapy