Armpit hair is the hair that grows in the armpit, mainly due to the gonadal development began to gradually become darker and thicker, belongs to the normal physiological phenomenon, everyone will appear, usually with the development of puberty, the armpit hair will also follow the growth. Armpit hair is a kind of human body hair, is the performance of the human body’s secondary sexual characteristics, usually can play a role in heat dissipation, promote the secretion of sweat, etc. Armpit hair grows in the armpit, and the armpit at the sweat gland, sebaceous glands, sweat glands and other sweat glands are more developed, it is easy to pay attention to hygiene and cleanliness, prone to a lot of diseases, such as folliculitis, etc.. Some female population, axillary hair growth exuberant, in the hot summer wearing clothes will affect the aesthetic, often choose to eliminate hair, the current better results, longer maintenance time hair removal method is laser hair removal, with small damage, good efficacy and other advantages.