Nipple discharge is any fluid or other liquid that comes out of your nipple. You might have to squeeze the nipple to get the fluid to come out, or it could seep out on its own.
即使您没有怀孕或母乳喂养，乳头排出也很常见。排放通常不严重。尽管如此，它仍然可能是乳腺癌的迹象，因此值得与医生谈论。
继续阅读了解更多关于各es of nipple discharge and when you should talk with your doctor.
你可知道？Your breasts each contain about 20 milk ducts, and fluid can leak from them. It’s normal for some milk to leak out of your nipple when you’re pregnant or lactating.
乳头排放有多种颜色。颜色可能会为您提供有关原因的一些线索。下图列出了放电颜色和一些可能的原因，如果您不哺乳。
| Color | 可能的原因 |
| white, cloudy, yellow, or filled with pus | an infection of the breast or nipple |
| 绿色 | cysts |
| 棕色或类似奶酪 | 乳腺导管东南(blocked milk duct) |
| clear | 乳腺癌, especially if only coming from one breast 乳头状瘤 |
| 血腥 | 乳头状瘤 乳腺癌 |
The causes listed are only suggestions. You should see a doctor for a proper diagnosis if you notice nipple discharge of any color.
Discharge can also come in a few textures. For example, it may be thick, thin, or sticky.
The discharge might come out of just one nipple or both nipples. And it can leak out on its own or only when you squeeze the nipple.
您可能会出现乳头排出的其他一些症状包括：
- breast pain or tenderness
- lump or swelling in the breast or around the nipple
- nipple changes, like turning inward, dimpling, changing color, itching, or scaling
- skin changes, such as rash or lesions
- 发红
- breast size changes, such as one breast that’s larger or smaller than the other
- 发烧
- missed periods
- nausea or vomiting
- 疲劳
当您怀孕或哺乳时，少量牛奶可能会泄漏出来。泄漏可以在怀孕初期开始，您可以在结束护理后最多2到3年的牛奶继续看到牛奶。
However, you may have discharge even if you’re not pregnant or lactating. Other causes of nipple discharge include:
- 避孕药
- breast infection or abscess
- duct papilloma, a harmless wart-like growth in your milk duct
- drugs that increase levels of the milk-producing hormone prolactin, such as antidepressants and tranquilizers
- excess stimulation of the breast or nipple
- 纤维囊肿的乳房
- hormone changes during your period or绝经
- injury to the breast
- 乳腺导管东南，被称为封闭的牛奶管道
- 催乳素瘤，垂体的非癌性肿瘤
- 不够甲状腺
- 乳腺癌
乳腺癌可能导致乳头排出，尤其是原位导管癌（DCIS），这是乳腺癌的早期形式，始于牛奶管道。它也可能发生paget病乳房是一种罕见的乳腺癌，涉及乳头。
If you do have breast cancer, the discharge will probably only come from one breast. You may have a lump in your breast, too.
Discharge is rarely due to cancer, however. In an older study, only
It’s still a good idea to get any breast discharge checked out, especially if it’s a new symptom for you.
乳头排放通常不用担心。尽管如此，因为这可能是乳腺癌的迹象，所以值得让医生检查一下。尤其重要的是要看医生if：
- 你的乳房有肿块
- you have nipple or skin changes, such as crusting or color change
- you have pain in your breast or other symptoms of breast cancer
- 流血是流血的
- only one breast is affected
- the discharge doesn’t stop
In men, it’s important to see a doctor if you notice any nipple discharge as it’s uncommon.
Your doctor will start by asking questions about the discharge, including:
- 排放何时开始？
- Is it in one breast or both?
- Does it come out on its own, or do you have to squeeze the nipple to produce it?
- 您还有哪些其他症状？
- 你吃什么药？
- Are you pregnant or breastfeeding?
The doctor will do a clinical exam to check your breasts for lumps or other signs of cancer. You may also have one or more of these tests:
- Biopsy.医生从乳房中除去一小部分组织以检查癌症。
- Mammogram.This test takes X-ray pictures of your breasts to help the doctor look for cancer.
- 导管图。This test uses mammography and an injected contrast material to display an image of the milk ducts inside your breasts.
- 超声.该测试使用声波创建乳房内部的图像。
Your doctor will also likely do a urine or blood test to find out if you’re pregnant.
