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4.Lymph nodes changes
Lymph nodes are collections of immune system tissues which play a key role in the human body in that they filter the fluid and capture harmful cells that include bacteria, viruses and cancer cells.
The underarm lymph node region is the first place where the cancer cells go forward on the same side of the affected breast, which leads to swelling of this area.
Lymph nodes tissues seem like small, hard, swollen lumps and can be touched. Said tissues may be affected by breast infections or any other illnesses.
It is favorable to check any changes to reveal the cause as soon as possible to avoid the infection.
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