A one-year-old doll behind the ear suddenly has a small bag, may be caused by mosquito bites, there may be sebaceous cysts, swollen lymph nodes.
1. Mosquito bites: a year-old baby behind the ear small bags may be in the summer, mosquito bites due to venom into the skin caused by the internal allergic reaction. Mosquito bites can be painful, itchy and bulging.
2. Sebaceous cysts: Sebaceous cysts are retention cysts formed mainly due to the blockage of sebaceous ducts and can occur at any age. Sebaceous glands are usually found in the head, face, back, etc. They are small in size and grow slowly.
3. swollen lymph nodes: a year-old doll may be due to decreased immunity to inflammatory infections, such as tonsillitis, otitis media and other diseases, will also trigger the surrounding parts of the lymph nodes are enlarged, can be accompanied by different degrees of pain symptoms.
A year-old doll behind the ear suddenly has a small bag of more reasons, parents are advised to take the baby to the doctor in time, so as not to lead to further aggravation of the condition.