Question
A 38-year-old woman asks: My husband often kisses my nipples; does this increase the risk of breast cancer?
Answer
Frequent kissing does not significantly increase the risk of breast cancer. Like other malignant tumors, breast cancer can spread through blood, lymph, and metastasis, but the specific cause is not yet clear. Although breast cancer poses a serious threat to women’s health, intimate sexual activity is beneficial for couple relationships and stress relief.