There are many reasons why hard packs keep growing on the face, such as severe acne, sebaceous cysts, sweat duct tumors and other causes. 1. Severe acne: the pathogenesis has not been fully elucidated and may be related to genetic factors, androgen-induced sebaceous gland secretion, as well as keratinization of follicular sebaceous gland ducts, and propagation of Propionibacterium acnes. Severe acne can cause inflammatory papules and pustules, as well as nodules, cysts, and scarring, which may lead to hard bumps on the face all the time. 2. Sebaceous cysts: Facial sebaceous glands are distributed exuberantly, sebaceous ducts block the glands, secretions can not be discharged in time, cystic structures will be formed, which will also cause the face always long hard bags. 3. Sweat duct tumor: it is a kind of benign skin tumor that involves the ducts of sweat glands, preferably occurring in the face, which may cause the appearance of a long hard bag on the face. There may be other reasons why you have hard packs on your face, so it is recommended that you go to the hospital in time to clarify the cause of the problem and follow the doctor’s instructions for treatment.