When traveling abroad, if the skin suddenly feels red, swollen and hot, most people will think it is caused by mosquito bites. Just rub the medicine or treat it with antibiotics. However, if the swollen part appears in the ear, be careful that it may be hereditary "ear canal", which may be swollen due to bacterial infection, and in severe cases, it will cause otochondritis and lead to auricle deformation.

Anterior auricular canal is a common congenital symptom of incomplete ear fusion, which can cause bacterial infection and, in severe cases, cellulitis or otochondritis. The boy in the photo is not the main character in the news. Five-year-old Hao Hao, on a family outing, had a temperature as high as 38.3℃, a slight inflammation in his throat and a fever in ear inflammation. He mistakenly thought it was caused by mosquito bites, so he was treated with antipyretics and antibiotics, but the discomfort did not relieve. On the contrary, the swelling area on his ear expanded to 2x2 square centimeters, and the tingling sensation in the affected area became more and more serious. After examination by a plastic surgeon, it was found that there was no rash, muscle aches, cough with phlegm and excessive phlegm.

Wu Xiaoshu, a plastic surgeon in the Affiliated Hospital of China Medical University, explained that the preauricular canal is a common congenital auricle incomplete fusion, which is usually unilateral, and a few of them will form a binaural preauricular canal. There seems to be only a small hole outside the ear canal in front of the ear. Usually, there will only be some sebum secretion, dander produced by epithelial cells or off-flavor milky white secretion, which will not cause great inconvenience to patients' lives. However, if the ear canal is blocked by epithelial secretions, dander or internal bacterial infection, it will cause swelling, abscess and even cellulitis, and more seriously, it will cause otochondritis of the ear shell, leading to auricle deformation.

Dr. Wu Xiaoshu said that the internal structure of the preauricular canal is varied and sometimes looks like a branch. Moreover, the depth and direction of the downward extension of the preauricular canal are not necessarily, and the influence on the face is not necessarily. Although the preauricular tube usually does not cause inconvenience in life, it is recommended to seek medical treatment as soon as possible and find a professional doctor to avoid the risk of bacterial infection.