Green stool — when your feces look green — is usually the result of something you ate, such as spinach or dyes in some foods. Certain medicines or iron supplements also can cause green stool. Newborns pass a dark green stool called meconium, and breastfed infants often produce yellow-green stools.

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Yellow or green semen. Semen can look more yellow as a person gets older. Other causes could be an infection, jaundice, or a side effect of taking medicine that turns the semen yellow or green. Brown or black semen.

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Semen that is black or brown commonly means old blood is present. Dr. Isabel Green completed her Obstetrics & Gynecology residency at John Hopkins University and fellowship in Minimally Invasive Gynecologic Surgery at Georgetown University-MedStar. She provides care for women with benign gynecologic conditions and is jointly appointed in Departments of Obstetrics and Gynecology and Surgery. She is Board Certified in Obstetrics and Gynecology.

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Her clinical ... Isabel C. Green, M.D., M.H.P.E. - Doctors and Medical Staff - Mayo Clinic Thin, vaginal discharge that may be gray, white or green. Foul-smelling, "fishy" vaginal odor. Vaginal itching.

Burning during urination. Many people with bacterial vaginosis have no symptoms. When to see a doctor Make an appointment to see a health care professional if: Your vaginal discharge smells unusual and you have discomfort. Color blindness is usually inherited, meaning it's passed down through families.