Is it normal for milk to leak out when unmarried and not having given birth?

Patient's question:

Patient Gender: Female
Detailed Condition and Purpose of Consultation: I had ML with my boyfriend today, and surprisingly, I found a little milk leakage when he was rubbing my breasts. How is this possible when I haven't been pregnant before? Also, my menstrual cycle has always been normal. However, I have a fungal vaginal infection. I'm using Daktarin suppositories in my vagina. Is this normal?

Doctor's answer:

Consider it as mastitis. The symptoms of mastitis are generally breast pain, breast lumps, etc. Some patients may also present with nipple discharge. Mastitis may develop into cancer, so it needs to be treated in a timely manner.
Guidelines: You can use traditional Chinese medicine for external application, such as "Mastitis Safety" (.). Additionally, you can eat more coarse grains, fresh vegetables, and fruits. Maintain regular meals and a balanced diet. Try to limit excessive consumption of meat and avoid spicy foods, caffeine, alcohol, and staying up late. If it occurs frequently afterward or the lactation period prolongs, it is recommended to seek medical examination and treatment.