What causes a foul odor in menstrual blood, and how can it be regulated?

Menstrual odor is often caused by non-pathological factors, but it may also result from pathological conditions such as vaginitis or endometritis. A hospital visit is recommended to identify the underlying cause and receive appropriate treatment. Specific analyses are as follows:

I. Non-Pathological Causes

Using sanitary pads for prolonged periods during menstruation can lead to poor local ventilation. Combined with inadequate personal hygiene and failure to clean menstrual discharge in a timely manner, this can cause an unpleasant odor. Regular washing of the external genitalia with warm water and frequent changing of sanitary pads usually resolves the issue, without requiring specific medical treatment.

II. Pathological Causes

1. Vaginitis

Vaginitis in women can lead to increased vaginal discharge and abnormal odor. During menstruation, this discharge mixes with menstrual blood and causes foul-smelling periods. After menstruation ends, treatment under medical guidance may include medications such as metronidazole suppositories, tinidazole suppositories, or nystatin suppositories.

2. Endometritis

Endometritis involves inflammatory infection, causing shed endometrial tissue to contain large amounts of inflammatory exudate. When mixed with menstrual blood and expelled, this leads to the symptoms described. Treatment may involve taking medications as prescribed by a doctor, such as Fuke Qianjin tablets, levofloxacin tablets, or amoxicillin capsules.

In addition, menstrual odor can also be a symptom of pelvic inflammatory disease, uterine cancer, or cervical cancer. It is advisable to visit a gynecologist for comprehensive evaluation and targeted treatment based on the specific diagnosis.