Dandruff sticking to the roots of the hair can be caused by a variety of factors, including physiological factors such as excessively oily hair, as well as other diseases such as seborrheic dermatitis and tinea capitis. Clinical treatments are chosen according to the specific conditions of the disease, and the main treatments include general treatment, drug treatment and so on. 1. Hair too oily: when eating too much greasy food or shampooing and conditioning products used improperly, coupled with their own oily hair, may lead to an increase in dandruff and sticky in the hair root. At this time, you should avoid exposure to the sun, immediately stop using related products, eat a light diet, and if it continues to be unrelieved, you should go to the hospital in a timely manner for professional treatment. 2. Seborrheic dermatitis: a chronic inflammatory skin disease, can be caused by genetic, sebum metabolism abnormalities and other factors. The main symptoms can be seen in the increase of dandruff and can be adhered to the root of the hair, may be accompanied by bad smell. The main treatment includes general treatment, drug treatment, such as maintaining a regular life, eat a light diet; can follow the doctor’s instructions for external use of selenium disulfide lotion and other drugs. 3. Tinea capitis: a fungal infection of the hair and scalp, can be caused by infection, immune system disorders and other factors. The main symptoms can be seen as extensive dandruff adhering to the hair shaft and hair loss. The main treatment modalities include general treatment, medication, etc., such as disinfecting all the patient’s daily necessities to prevent infection, and taking medications such as terbinafine and itraconazole as prescribed by the doctor. If dandruff adheres to the roots of the hair and continues to be unrelieved, you should go to the hospital in a timely manner, undergo a relevant hospital examination in order to clarify the cause of the disease, and actively comply with the doctor’s instructions for treatment, and do not take care of it on your own.