Why Does My Buttocks Feel Rough and Darken After Sitting for Long Periods?

Rough and darkened skin on the buttocks after prolonged sitting may be caused by factors such as long-term friction, hyperkeratosis of the skin, and age. It is recommended to first identify the underlying cause and treat it accordingly. The specific situations are as follows:

1. Long-term Friction: Prolonged sitting can lead to friction between the skin on the buttocks and the chair, potentially causing some keratinous changes in the local skin. This can result in a rough texture when touched. Due to long-term pigmentation, darkening may also occur. It is recommended to reduce prolonged sitting and, if necessary, apply medications such as urea ointment, salicylic acid ointment, or hydroquinone cream locally under medical advice.

2. Hyperkeratosis of the Skin: When the skin keratinizes faster than normal, keratinous substances accumulate on the skin surface, making it feel rough. It is recommended to avoid using alkaline soap for local skin cleansing and to apply moisturizing lotion after cleansing. Additionally, consuming fresh fruits, vegetables, and other vitamin A-rich foods can help promote recovery from the condition.

3. Age Factor: As people age, their skin's ability to retain moisture decreases, and sebum secretion also diminishes, leading to water loss in the skin and subsequently causing the buttocks to feel rough. It is recommended to drink more water and consume fiber-rich foods appropriately. Since these conditions are normal physiological phenomena, drug intervention is usually not required.