A 40-year-old patient has white pubic hair.

Pubic hair refers to the hair in the genital area. Gray pubic hair in a 40-year-old patient may be caused by physiological factors or pathological conditions such as vitiligo or vulvar leukoplakia. Patients should receive corresponding treatment based on their specific condition, as detailed below:

I. Physiological Factors

With increasing age, the activity of melanocytes in hair follicles gradually decreases, leading to reduced melanin in the hair shafts, which may result in the graying of pubic hair. This phenomenon is a normal physiological change and does not require special treatment.

II. Pathological Factors

1. Vulvar Leukoplakia
This condition has various causes, including prolonged sitting and infections. Female patients may also experience skin discoloration and itching. Chronic inflammation can stimulate the above-mentioned changes. Under a doctor's guidance, patients may undergo treatment with liquid nitrogen cryotherapy.

2. Vitiligo
Vitiligo is a type of skin disorder primarily characterized by mucosal pigment loss. Contributing factors include local trauma and abnormal immune function. The disease manifests as white patches on the skin, and the hair within these patches may also turn white, thus causing the aforementioned symptom. Patients should seek treatment at a reputable hospital, where phototherapy may be recommended under medical supervision.

In addition to the above, gray pubic hair could also result from endocrine disorders, severe anemia, albinism, or hyperthyroidism. It is recommended that patients avoid excessive mental stress or anxiety in daily life, as these may disrupt endocrine function and worsen the condition. Active cooperation with medical treatment is essential.