Sebaceous cysts, once they appear, will gradually increase in size as they grow, and generally, they will not subside or heal on their own. Once discovered, it is essential to visit the dermatology department of a standard hospital. Allow doctors to diagnose before treating. The most common and thorough method is still to perform minor surgery to completely remove the tofu-dregs-like material inside. This disease is related to vigorous sebaceous gland secretion and bacterial infection on the skin surface. Therefore, after recovery, it is crucial to regulate dietary and lifestyle habits, avoid public baths and swimming, avoid eating spicy and stimulating food, and routinely enhance exercise and bathe more often. It is also advised not to keep small animals at home.