After pulling out the hair follicle usually will not grow hair again. Hair growth requires hair follicles, hair follicles are accessory organs of the skin, belonging to the epidermal cells continuously formed pouch-like epithelium, the base is the dermis concave dermal hair papillae, can grow a hair, the opening for the follicular pore, hair follicles can be divided into follicular funnel, follicular isthmus, and follicular lower part. Hair grows from within the follicle, and if there is no follicle, the hair does not normally grow. Human hair follicles are identified at birth and do not grow again later in life, and the number of hair follicles after birth only decreases with age. If the hair loss is caused by hair follicle shedding, you should consult a doctor in time, under the guidance of the doctor for treatment, and pay attention to keep a happy mood, pay attention to rest, and avoid staying up all night in your daily life.