Differential Diagnosis for 1 week dysuria, yellow discharge, and vagina itching

• Single most likely diagnosis
  • Bacterial Vaginosis (BV): This condition is characterized by an imbalance of the normal vaginal flora, leading to symptoms such as dysuria, abnormal vaginal discharge (often yellow or greenish), and itching. The presence of these symptoms for 1 week aligns with a typical presentation of BV.
• Other Likely diagnoses
  • Vulvovaginal Candidiasis (VVC): Also known as a yeast infection, VVC can cause itching, burning during urination (dysuria), and a thick, white or yellow discharge. It's a common condition, especially in women of reproductive age.
  • Trichomoniasis: This sexually transmitted infection (STI) can cause a foul-smelling, yellow-green or gray vaginal discharge, itching, and dysuria. Its presentation overlaps with BV and VVC, making it a plausible diagnosis.
  • Chlamydia or Gonorrhea: These STIs can cause dysuria and abnormal discharge. While they might not always cause itching, they are common enough and their symptoms can overlap with those described, making them other likely diagnoses.
• Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
  • Pelvic Inflammatory Disease (PID): Although PID might not always present with itching, it can cause severe pelvic pain, dysuria, and abnormal discharge. It's a critical diagnosis not to miss due to its potential for long-term complications, including infertility and chronic pelvic pain.
  • Tuberculosis (TB) of the Genital Tract: Though rare, genital TB can cause a variety of symptoms including abnormal vaginal discharge, dysuria, and pelvic pain. It's crucial to consider in endemic areas or in individuals with risk factors for TB.
• Rare diagnoses
  • Desquamative Inflammatory Vaginitis (DIV): A rare condition characterized by a purulent vaginal discharge and significant vaginal inflammation, which could explain the dysuria and itching. However, it's less common than other conditions listed here.
  • Vaginal carcinoma: Although extremely rare, especially in younger women, any abnormal vaginal bleeding or discharge that persists should prompt an evaluation for malignancy, especially if accompanied by other symptoms like itching and dysuria.