It is generally safe to use a hot water bottle during pregnancy, especially for relieving common discomforts like back pain, cold feet, headaches, or sinus pain, as long as certain precautions are taken. It is important not to place the hot water bottle directly on the belly, especially in the first trimester, and to avoid using very hot or boiling water. Using a cover for the hot water bottle, limiting usage to about 15-20 minutes at a time, and ensuring it is not leaking or damaged are recommended safety measures. Pregnant women with cardiac or vascular conditions, risk of premature birth, or certain placental abnormalities should avoid using hot water bottles without consulting their healthcare provider. Overheating the body during pregnancy can pose risks, but a hot water bottle on its own is unlikely to raise core body temperature dangerously if used properly.
