There is no authoritative information on how long you can sleep with your family after taking iodine 131. Some research data show that when the dose of iodine 131 is 5 hojutsu, the time of not sleeping with your partner is at least 15 days. The time of isolation from family members after taking different doses of Iodine 131 is also different, and it is recommended that the treatment be under the guidance of a doctor. There is no clear clinical information on the specific time that patients can sleep with their family members after taking iodine 131, and the time of close contact with family members after discharge from the hospital is also different for patients treated with different doses of iodine 131. The survey data show that when the dosage of iodine 131 is 5 hauaju, the time of not sharing the same bed with the partner is at least 15 days. Some patients after taking iodine 131 may appear loss of appetite, fatigue, nausea, neck pain and other adverse reactions, after a period of time will disappear on their own, if continued unrelieved need to go to the hospital in time. It is recommended that patients should drink more water after taking Iodine 131, and drinking 2500-3000ml of water per day can help eliminate residual radiation in the body, and at the same time, ensure sufficient rest and avoid heavy physical labor. Patients should have a light diet, and eat less spicy and stimulating food, such as onions, ginger and chili peppers. Patients are advised to take different doses of Iodine 131 with different isolation time from their family members, and are advised to be treated under the guidance of a doctor.