Mosquito bites on the body like a bag, in daily life is relatively common, can cause the body to start a bag of many situations, in the clinical most common are mainly the following: 1, papular urticaria. Is due to mosquito bites after the release of acidic substances resulting in hypersensitivity reactions, there will be a body bag. 2, early childhood emergency rash. If the baby’s body appears like a mosquito bite light red or red bumps, may also be due to viral infection caused by early childhood emergency rash. 3, allergic dermatitis. When the patient because of contact with certain chemicals, or oral allergies to certain foods, drugs, the body will appear red bumps, like mosquito bites. 4, heat rash. If the patient appears like a mosquito bite red bumps, pinpoint size with itching, if the temperature is relatively high, it may be prickly heat.