There are many reasons why nipples feel wet, such as nipple eczema, breast hyperplasia and nipple eczema-like cancer. 1. Nipple eczema: Nipple eczema can cause localized pimples, small blisters and other lesion-like, blister rupture can cause blister oozing, which leads to nipple feeling wet phenomenon. 2. Mammary hyperplasia: some patients with mammary hyperplasia may show breast swelling and pain, and even nipple secretion, which may show yellowish or transparent liquid, thus leading to wet nipple sensation. 3. Eczema-like nipple cancer: Eczema-like nipple cancer can also lead to wet nipple, early symptoms are not obvious, with the development of the disease, it can show tingling and burning pain in the nipple, and then there will be chronic eczema-like lesions, with reddened, vesiculated and wet nipple and areola skin. Meanwhile, nipples may also feel wet when nipple overflow occurs with dilated milk ducts and lobular hyperplasia. There are many reasons why the nipples feel wet, and after the symptoms appear, it is recommended to go to the hospital in time to improve the examination, and take standardized treatment according to the doctor’s instructions after a clear diagnosis.