Topping out is medically known as seborrheic alopecia, whether hair can grow out depends on the degree of seborrheic alopecia, if the hair follicles are atrophied or even closed is not able to grow out hair. Whether hair can grow out of seborrheic alopecia depends on the degree of hair loss. If the degree of seborrheic alopecia is mild, only for the top of the head hair thinning, revealing part of the scalp, but still have hair cover, such a situation represents the top of the head part of the hair follicles have not completely closed, after treatment is generally can grow new hair. If seborrheic alopecia is more serious, there is basically no hair on the top of the head, and the hair follicles have been closed, atrophied and damaged, then no matter what measures are taken, no new hair can be grown, unless it is a hair transplant. If the hair follicles are not closed, you can take medication under the guidance and advice of a professional doctor, such as topical minoxidil tincture, oral finasteride, etc. If the hair follicles are closed, you can have a hair transplant in a professional organization. It is recommended that patients go to the hospital in time and follow the doctor’s instructions for treatment.