Eruptive vellus hair cysts (EVHCs) are uncommon developmental anomaly of vellus hair follicles that are observed in young patients. EVHCs are either sporadic, in which case they appear in the first or second decade of life, or inherited in an autosomal dominant fashion with lesions appearing at birth or in early infancy. They manifest clinically with multiple small dome shaped papules with colors ranging from skin-colored, yellow, and blue to red. Lesions commonly involve anterior chest, abdomen, and extremities. Histological examination typically shows a cystic structure lined with squamous epithelium, filled with laminated keratin and multiple vellus hairs. About 25% of cases resolve spontaneously and for the remaining cases, there is no definite treatment but topical retinoic acid, pulsed carbon dioxide, and erbium: Yttrium aluminum garnet-laser ablation can be tried. An 8-year-old girl presented with multiple dot-like macules on the back. She was diagnosed with precocious puberty and Hashimoto’s thyroiditis, treated with leuprolide and levothyroxine, respectively. Histopathologic findings from the macules showed small follicular cysts lined by squamous epithelium containing laminated keratinous material and vellus hair shafts. The patient was diagnosed with EVHCs and observed without treatment. Herein we report a case of EVHCs in an 8-year girl with precocious puberty.