Sometimes when the thigh is close to the ass, it will give birth to a very painful "steamed stuffed bun" with blood in it. In the words of Chaoshan people, it is' black bubble'

According to the description, this symptom may be folliculitis or furuncle, which is an inflammatory skin disease caused by bacterial infection. It is suggested to pay attention to local hygiene, avoid scratching and indiscriminate use of drugs, and seek medical examination and targeted treatment in time.

In Chaoshan area, this symptom may be called "black bubble", but the specific cause and treatment may vary from person to person. It is recommended to consult a local doctor or dermatologist for detailed diagnosis and treatment. At the same time, maintaining good living habits and eating habits and avoiding excessive fatigue and emotional tension will help improve the body's immunity and prevent the occurrence of skin diseases.