Thyroid nodule 4A benign can generally be cured, you can take medication, surgery and other ways of treatment. 1. Medication: For patients with benign thyroid nodule 4A and hyperthyroidism, they can take oral antithyroid drugs such as methylthiouracil, methimazole and carbimazole under the instruction of doctor. For patients with hypothyroidism, they need to take levothyroxine for life to maintain the normal level of thyroid gland. 2. Surgery: If the size of thyroid nodules is large and there are pressure symptoms such as dyspnea, dysphagia, etc., patients can also take surgical treatment, such as thyroid lobotomy, microwave ablation, lumpectomy thyroid surgery and so on. Generally speaking, benign thyroid nodules without obvious symptoms usually do not require special treatment, but need to follow the doctor’s instructions for regular review. For patients with benign thyroid nodules, it is recommended to consult a doctor for examination and treatment, and regular review should be conducted during the treatment period.