Underarm hair with yellow attachments may be caused by armpit odor, armpit hair ringworm and other diseases, can take general treatment, drug treatment, physical therapy, surgical treatment. 1. Axillary odor: If axillary hair with yellow adherent caused by axillary odor, daily need to take a shower, keep the local dry and hygienic. Patients can follow the doctor’s instructions to use aluminum chloride anhydrous ethanol solution externally to inhibit sweat secretion. You can also take surgical treatment, such as sweat gland removal, local botulinum toxin injection, etc., to destroy the sweat gland tissue, improve armpit odor. 2. Axillary lichen planus: axillary lichen planus is the superficial infection of rod-shaped bacillus in the axillary hair, daily need to pay attention to personal hygiene, keep dry, remove axillary hair when necessary. Patients can follow the doctor to use 5% sulfur cream and other drugs, with antibacterial effect. Local sweating can also be used externally 1% formalin solution, with the inhibition of sweat. The cause of underarm hair with yellow adherents is not unique, it is recommended that patients go to the hospital, after a clear cause of standardized treatment.