If the discharge is foul-smelling, yellowish, and frothy, you may be infected by a one-celled protozoa called Trichomonas, or "trick." If you have a heavy discharge without much irritation and notice a fishy odor, particularly after intercourse, your symptoms may be due to a bacterial infection that doctors call "bacterial vaginosis." Indeed, bacterial infections are the most common cause of vaginitis. Both of these infections require treatment with prescription medication.
Candidiasis is a fungal infection due to any type of Candida (a type of yeast).[2] When it affects the mouth, it is commonly called thrush.[2] Signs and symptoms include white patches on the tongue or other areas of the mouth and throat.[3] Other symptoms may include soreness and problems swallowing.[3] When it affects the vagina, it is commonly called a yeast infection.[2] Signs and symptoms include genital itching, burning, and sometimes a white "cottage cheese-like" discharge from the vagina.[8] Yeast infections of the penis are less common and typically present with an itchy rash.[8] Very rarely, yeast infections may become invasive, spreading to other parts of the body.[9] This may result in fevers along with other symptoms depending on the parts involved.[9]
A dog’s ear canal plunges downward and then away from the ear opening (it is shaped like a “L”). That gives yeast a favorable environment in which to grow. If your dog swims or is bathed frequently, trapped water or debris in the ear canal can lead to yeast infections. Allergens like pollens, mold, dust, feathers, cigarette smoke, cleaning products, and certain foods can also lead to ear infections in a dog.
Bacterial vaginosis is an abnormal vaginal condition with signs and symptoms of vaginal discharge, vaginal odor, and vaginal pain. Bacterial vaginosis results from an overgrowth of normal bacteria in the vagina. Although it may cause some disturbing symptoms (discharge and odor), it is not dangerous and cannot be passed by sex. Diagnosis becomes important to exclude serious infections like gonorrhea and Chlamydia. Many treatment options are available such as oral antibiotics and vaginal gels.
In people who have a weakened immune system because of cancer treatments, steroids, or diseases such as AIDS, candida infections can occur throughout the entire body and can be life-threatening. The blood, brain, eye, kidney, and heart are most frequently affected, but Candida also can grow in the lungs, liver, and spleen. Candida is a leading cause of esophagitis (inflammation in the swallowing tube) in people with AIDS.

This is because vaginal infections caused by bacteria, as well as some sexually transmitted infections (STI), may have symptoms very similar to those caused by yeast, but they require different treatments. Since yeast infection treatments have become available over the counter (OTC), many women simply visit the closest drugstore and buy an antifungal cream.
A 2005 publication noted that "a large pseudoscientific cult"[69] has developed around the topic of Candida, with claims up to one in three people are affected by yeast-related illness, particularly a condition called "Candidiasis hypersensitivity".[70] Some practitioners of alternative medicine have promoted these purported conditions and sold dietary supplements as supposed cures; a number of them have been prosecuted.[71][72] In 1990, alternative health vendor Nature's Way signed an FTC consent agreement not to misrepresent in advertising any self-diagnostic test concerning yeast conditions or to make any unsubstantiated representation concerning any food or supplement's ability to control yeast conditions, with a fine of $30,000 payable to the National Institutes of Health for research in genuine candidiasis.[72]
It's not clear whether vaginal yeast infections can be transferred during sexual intercourse. However, if your sexual partner has the symptoms of candida—redness, irritation and/or itching at the tip of the penis in a male—he may need to be treated. In rare cases, treatment of partners of women with recurrent yeast infection is recommended. Additionally, recurrent yeast infections may be representative of a different problem. Thus, it is important to see your health care provider for an evaluation.
The healthy vaginal ecosystem requires just the right balance of bacteria flora. The vaginal mucosa, which protects against pathogens, is made up predominantly of healthy bacteria called lactobacillus. These bacteria make hydrogen peroxide, which keeps unhealthy bacteria from getting out of hand. This, in turn, keeps the amount of yeast at a normal level. Too much douching can disrupt the bacterial balance and lead to infection.
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Here are some simple steps you can take that may help you avoid yeast infections: Don't douche or use feminine hygiene sprays, bubble bath or sanitary pads or tampons that contain deodorant. These items seem to affect the balance of acidity of the vagina, which can lead to an infection. Wearing cotton panties, avoiding tight-fitting clothing, avoiding regular use of panty liners and wiping from front to back after using the toilet can help you avoid yeast infections. Since the microorganisms responsible for yeast infections thrive in warm, moist environments, be sure to dry your genital area well after bathing and before getting dressed.


Most women will get a vaginal yeast infection at some point in their life. Symptoms of vaginal yeast infections include burning, itching, and thick, white discharge. Yeast infections are easy to treat, but it is important to see your doctor or nurse if you think you have an infection. Yeast infection symptoms are similar to other vaginal infections and sexually transmitted infections (STIs). If you have a more serious infection, and not a yeast infection, it can lead to major health problems.
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