A medical drip bag heater includes a flexible sheet of material configured to wrap around a drip bag, heating wires, velcro strips, and a thermostat control. The sheet of material includes a body portion with two side edges and a bottom flap with a bottom edge. The heating wires are embedded into the sheet of material and configured to electrically connect to a power source through a thermostat control. The velcro strips are fixedly attached to the two side edges and the bottom edge. The thermostat control controls the temperature of the heater and displays the temperature.