The most common types of hard nodules within the eyelids are wheals and chalazia, so there is no need to worry too much. The recurrence can be reduced by paying attention to personal hygiene and strengthening the immune system. If the nodule persists or increases in size, the nature of the nodule should be observed. If the nodule is irregularly enlarged, if the boundary with the skin is unclear, or if an ulcer is present, prompt medical attention should be sought to clarify the diagnosis and treatment.