Why is there a yellowish substance on my underwear that smells like urine?
Sep 12, 2023
Source: Cainiu Health
Dr. Zhao Xiaodong
Introduction
Yellowish stains with a urine-like odor on underwear may be caused by inadequate cleaning of the underwear, or could be related to medical conditions such as cervicitis, endometritis, urethritis, or balanitis. If yellowing and urine odor persist despite frequent changes of underwear, especially when accompanied by itching or other discomfort, it is advisable to seek timely medical evaluation to determine the underlying cause and receive appropriate treatment.
Generally speaking, yellow stains with a urine-like odor on underwear may be caused by inadequate cleaning of the underwear, or could be related to medical conditions such as cervicitis, endometritis, urethritis, or balanitis. Specific explanations are as follows:
1. Inadequate Cleaning
If underwear is not thoroughly cleaned or not changed regularly, it may become yellow or develop an unpleasant odor. If residual urine remains on the underwear after urination, it is recommended to change the underwear promptly. It's important in daily life to frequently change and wash intimate clothing to maintain cleanliness.
2. Cervicitis
Cervicitis can cause dampness and itching, with light yellow vaginal discharge. If the underwear appears yellow, damp, and has a urine-like odor, anti-inflammatory medications such as cefixime capsules, cefdinir capsules, or Kangongyan tablets may be used under a doctor’s guidance.
3. Endometritis
Endometritis leads to increased vaginal discharge, which is typically a thin, watery, pale yellow fluid. In elderly patients, the discharge is often purulent. This can result in yellow stains and unpleasant or urine-like odors on underwear. Antibiotic treatment usually includes metronidazole tablets or amoxicillin-clavulanate potassium tablets.
4. Urethritis
Urethritis is commonly caused by bacterial or mycoplasma infections, leading to symptoms such as frequent and urgent urination, along with increased yellowish secretions that have an odor. After symptom onset, patients should take medications such as levofloxacin tablets, doxycycline hydrochloride tablets, or cefdinir capsules under medical supervision.
5. Balanitis
In men, yellow stains with a urine-like odor on underwear may indicate balanitis. Symptoms include local redness, erosion, and ulcer formation, which can stain the underwear, causing yellow discoloration and odor. Treatment options include oral fluconazole tablets or itraconazole capsules.
In summary, all medications mentioned above must be taken under a doctor’s guidance; self-medication should be avoided. If yellow stains and urine-like odors persist despite frequent underwear changes, especially when accompanied by itching or other discomforts, it is advisable to seek timely medical evaluation to determine the underlying cause and receive appropriate treatment.
