There are many causes of red bumps on children’s bodies, and common factors include eczema, psoriasis, scabies, mosquito bites, and folliculitis. 1. Eczema: Eczema is very common in childhood and can cause red bumps on children. 2. Psoriasis: Psoriasis can also cause red bumps on the body. Before the symptoms appear, children may have symptoms of respiratory infections such as colds, fever, and sore throats, and then red pimples all over the body will appear in 2-3 weeks. 3. Scabies: Scabies is caused by the scabies mite, and is transmitted by contact with infected patients or bedding and clothing used by patients. It often occurs between the fingers, in the armpits, under the breasts, on the lower abdomen, and on the inside of the femur (inner thighs), etc. In addition to red bumps, there are also obvious nighttime itching symptoms. 4. Mosquito bites: in summer and fall, children play outdoors around the grass, can be due to mosquito bites and lead to red bumps on the body. 5. Folliculitis: Inflammation of the hair follicles and their surrounding tissues on the child’s body can also be manifested by the appearance of single or multiple red bumps, accompanied by redness, swelling and pain. Red bumps on the child may also be caused by prickly heat, if the symptoms persist, it is recommended to the hospital dermatology department to clarify the cause of targeted treatment.