Vaginal discharge is a normal, vital process that keeps the reproductive tract healthy. It begins in the cervix and vaginal walls, and every woman’s flow varies slightly in texture, color, and volume. Under healthy conditions, discharge is clear or milky white, slightly stretchy—much like raw egg white—and may leave a faint yellow or white mark on underwear once it dries. As long as it doesn’t itch, burn, or carry a strong odor, it’s simply your body’s way of cleaning and moisturizing itself.
This fluid is made up of cervical mucus, shed vaginal cells, small amounts of blood-vessel fluid, beneficial bacteria, and secretions from local glands. Together, they form a protective barrier that flushes out dead cells and unwanted microorganisms—much as saliva keeps your mouth clean. By maintaining the right balance of moisture and acidity, normal discharge helps prevent infections and irritation.
When discharge changes noticeably—becoming thick and cottage-cheese-like, sporting a fishy smell, or turning yellow-green and frothy—it can signal an infection. A yeast overgrowth often produces clumpy, white discharge; bacterial vaginosis tends to cause a fish-like odor; and trichomoniasis typically brings yellow-green foam. If you experience itching, burning, pain during urination, unusual bleeding, or any significant shift in your discharge’s appearance or scent, it’s wise to see a healthcare professional. Understanding what’s normal for your body empowers you to catch potential issues early and maintain reproductive wellness.