What could be the reason for cottage cheese-like discharge on underwear without itching or pain?

White discharge resembling tofu residue on underwear without itching or pain may be caused by non-disease factors, or it could result from medical conditions such as vulvovaginal candidiasis or cervicitis. The underlying cause should be identified and treated accordingly. Specific analysis is as follows:

1. Non-disease Causes

Wearing underwear with poor breathability for extended periods or failing to change and wash underwear frequently can lead to prolonged retention of vaginal discharge on the surface of the underwear. Oxidation over time alters the consistency of the discharge, resulting in a tofu-residue-like appearance. This typically does not cause itching or discomfort. Symptoms usually resolve with frequent changing and washing of underwear and improved personal hygiene.

2. Disease-related Causes

1. Vulvovaginal Candidiasis

In cases of vulvovaginal candidiasis, inflammation occurs, and inflammatory stimulation increases mucosal secretions in the vagina. These mix with vaginal discharge (leukorrhea), causing it to appear like curdled tofu. In the early stages, noticeable itching or discomfort may be absent, but pruritus typically develops as symptoms worsen. Treatment may include antifungal medications such as nystatin suppositories, clotrimazole suppositories, or fluconazole, used according to medical advice.

2. Cervicitis

Cervical inflammation leads to the secretion of large amounts of purulent material from the cervical mucosa due to inflammatory stimulation. This is expelled from the body along with vaginal discharge, causing the aforementioned symptoms. Treatment may involve medications such as Antigynecol tablets, xiaomi suppositories, or Baofukang suppositories, as directed by a physician.

Besides the above causes, conditions such as pelvic inflammatory disease, endometritis, or cervical cancer may also be responsible. It is recommended to visit a hospital for examinations including routine vaginal discharge testing and pelvic ultrasound to determine the underlying cause and receive targeted treatment.