Whether thyroid nodules can eat hairy crabs, need to be based on whether the thyroid nodules are combined with hyperthyroidism, hairy crabs are freshwater crab farming or saltwater crab farming to decide, if the thyroid nodules are not combined with hyperthyroidism, you can eat hairy crabs, otherwise you can only eat freshwater crab farming. If thyroid nodules are combined with hyperthyroidism, you need to restrict iodine diet and avoid eating seafood. It is not recommended to eat hairy crabs if they are seawater-farmed. Seafood food is high in iodine, eating food with high iodine content is likely to induce thyroid crisis, or already cured hyperthyroidism is likely to lead to a recurrence of hyperthyroidism. If it is freshwater farmed hairy crabs with low iodine content, you can eat less. Thyroid nodule if there is no coexisting hyperthyroidism, can be reasonable intake of iodine-containing foods, whether freshwater crabs, or seawater-farmed crabs, can be eaten. Once thyroid nodules are detected, it is necessary to go to the local hospital for regular rechecking of thyroid ultrasound and thyroid function triple test.