Vaginal discharge has a sour, foul odor.
Vaginal discharge with an acidic or foul odor may be caused by conditions such as bacterial vaginosis, vulvovaginal candidiasis, pelvic inflammatory disease, endometritis, or cervicitis. It is recommended to seek treatment targeting the underlying cause.
1. Bacterial Vaginosis
Poor hygiene habits may lead to bacterial overgrowth in the vagina, triggering vaginitis. Under inflammatory stimulation, abnormal vaginal discharge with an acidic or foul smell may occur. Antibiotics such as cefradine capsules, metronidazole tablets, or doxycycline hydrochloride tablets may be taken under medical guidance to inhibit bacterial replication.
2. Vulvovaginal Candidiasis
Vulvovaginal candidiasis is caused by a fungal infection with Candida species. When Candida multiplies excessively in the vagina, it can produce an unusual odor. The discharge typically appears curd-like or creamy, and may be accompanied by symptoms such as vaginal itching, redness, and swelling. Antifungal treatments such as clotrimazole suppositories, miconazole nitrate suppositories, or nystatin vaginal tablets may be used as directed by a physician to reduce inflammation and kill fungi.
3. Pelvic Inflammatory Disease (PID)
Bacterial infection in the pelvic region can lead to pelvic inflammatory disease, which may also cause vaginal discharge with an acidic or foul odor. Additional symptoms may include abdominal pain. Treatment under medical supervision may include antibiotics such as levofloxacin hydrochloride tablets, metronidazole tablets, or cefuroxime axetil tablets, which help eliminate the infectious pathogens.
4. Endometritis
Unprotected sexual activity may allow bacteria to enter the uterus through the vagina, causing an inflammatory response in the endometrium. These bacteria can break down secretions, resulting in a foul, acidic odor. Other symptoms may include abdominal pain and increased vaginal discharge. Medications such as clindamycin hydrochloride tablets, gentamicin sulfate tablets, or doxycycline hydrochloride tablets may be prescribed to treat the infection.
5. Cervicitis
In cervicitis, inflammatory cells increase within the cervical canal, producing large amounts of inflammatory discharge. This disrupts the protective mucosal barrier of the cervix, leading to acidic and foul-smelling secretions. Symptoms may also include urinary frequency, urgency, and dysuria. Under medical guidance, medications such as levofloxacin hydrochloride capsules, cefprozil tablets, or ornidazole tablets may be used to control the progression of inflammation.
It is recommended to seek timely medical evaluation at a hospital, undergo necessary diagnostic tests, identify the exact cause, and receive targeted treatment under a doctor’s supervision. Maintaining good local hygiene during treatment can help prevent further infection and support recovery.