Reviewed By:
Ravi P. Chokshi, MD (Obstetrics and Gynecology (OBGYN), Critical Care)
Current Maternal Fetal Medicine Fellow with Dual board certification in Obstetrics & Gynecology and Critical Care Medicine. | 5+ years experience managing a general Ob/Gyn practice and working in the Intensive Care Unit. | Previously Physician Lead of a large single specialty practice with 8 Physicians and 10+ Advanced practitioners. | Member of the Society of Maternal Fetal Medicine Patient education committee. | Frequent Medscape Consult contributor.
Seiji Kanazawa, MD, PHD (Obstetrics and Gynecology (OBGYN))
Dr. Kanazawa graduated from the Niigata University Faculty of Medicine and received his Ph.D. from the Tohoku University Graduate School of Medicine. He is working on the front line of the General Perinatal Center, including the Tokyo Tama General Medical Center and the National Center for Research in Fertility Medicine, where he provides maternal and fetal care and undertakes clinical research. At Ubie, Dr. Kanazawa has been designing the Ubie AI Symptom Checker and has taken on the role of general obstetrics and gynecology consultation at FMC Tokyo Clinic by providing fetal ultrasound and prenatal consultation.
Content updated on Apr 4, 2024
Following the Medical Content Editorial Policy
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Smelly vaginal discharge
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Normal vaginal discharge should be clear or white without significant odor and not cause any irritation. Discharge that is foul smelling with an unpleasant odor should be investigated for infection.
Seek professional care if you experience any of the following symptoms
Generally, Foul-smelling vaginal discharge can be related to:
A healthy human vagina contains various types of bacteria. When the balance of bacteria is disrupted, some types can overgrow and cause symptoms. Common triggers include vaginal washing, sexual intercourse, or use of an Intrauterine Device.
Pyometra is extremely rare in humans. It occurs when there is a blockage of the opening of the uterus (cervix) and an infection occurs in the cavity, and it can fill with purulent material (pus). This occurs mostly in older, post-menopausal women when the cervix (outlet of the womb) is narrowed by tumors or previous surgeries.
Infection of the vagina by a parasite called Trichomonas. The disease is sexually transmitted but often does not cause any symptoms in men.
Sometimes, Foul-smelling vaginal discharge may be related to these serious diseases:
Premature Rupture of Membranes
Premature rupture of membranes (PROM) is a rupture of the membranes (amniotic sac) before labor begins, close to term. If membrane rupture occurs before 37 weeks, it's called preterm PROM. PROM occurs in about 8% to 10% of all pregnancies. In most cases, the cause of PROM is unknown. Risk factors include infections of the uterus, cervix, or vagina, or increased amniotic fluid causing too much stretching of the amniotic sac.
Your doctor may ask these questions to check for this symptom:
Hildebrand JP, Kansagor AT. Vaginitis. [Updated 2022 Nov 14]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-https://www.ncbi.nlm.nih.gov/books/NBK470302/
https://www.ncbi.nlm.nih.gov/books/NBK470302/Spence D, Melville C. Vaginal discharge. BMJ. 2007 Dec 1;335(7630):1147-51. doi: 10.1136/bmj.39378.633287.80. PMID: 18048541; PMCID: PMC2099568.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2099568/ACOG Patient FAQ
https://www.acog.org/womens-health/faqs/vulvovaginal-health?utm_source=redirect&utm_medium=web&utm_campaign=otnReviewed By:
Ravi P. Chokshi, MD (Obstetrics and Gynecology (OBGYN), Critical Care)
Current Maternal Fetal Medicine Fellow with Dual board certification in Obstetrics & Gynecology and Critical Care Medicine. | 5+ years experience managing a general Ob/Gyn practice and working in the Intensive Care Unit. | Previously Physician Lead of a large single specialty practice with 8 Physicians and 10+ Advanced practitioners. | Member of the Society of Maternal Fetal Medicine Patient education committee. | Frequent Medscape Consult contributor.
Seiji Kanazawa, MD, PHD (Obstetrics and Gynecology (OBGYN))
Dr. Kanazawa graduated from the Niigata University Faculty of Medicine and received his Ph.D. from the Tohoku University Graduate School of Medicine. He is working on the front line of the General Perinatal Center, including the Tokyo Tama General Medical Center and the National Center for Research in Fertility Medicine, where he provides maternal and fetal care and undertakes clinical research. At Ubie, Dr. Kanazawa has been designing the Ubie AI Symptom Checker and has taken on the role of general obstetrics and gynecology consultation at FMC Tokyo Clinic by providing fetal ultrasound and prenatal consultation.
Our symptom checker AI is continuously refined with input from experienced physicians, empowering them to make more accurate diagnoses.
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Which is the best Symptom Checker?
Ubie’s symptom checker demonstrated a Top-10 hit accuracy of 71.6%, surpassing the performance of several leading symptom checkers in the market, which averaged around 60% accuracy in similar assessments.
Link to full study:
https://www.medrxiv.org/content/10.1101/2024.08.29.24312810v1