If many goose bumps suddenly appear on the arms, they may be caused by emotional stress or cold weather, which stimulates the contraction of the erector spinae muscles and is a temporary physiological manifestation that can be relieved after the emotions have subsided or warmth has been provided. If such goose bumps persist, it may be a case of periorbital keratosis, which can be clearly diagnosed at a hospital and treated by a doctor according to the patient’s condition. Keratosis pilaris is a common chronic keratotic skin disease of the hair follicle, mainly caused by genetic factors. It is common in adolescents and most patients develop it before the age of 10. The lesions are characterized by goosebump-like keratotic papules, which appear on the extensor surfaces of the upper extremities, lateral femora and buttocks. The lesions are often worse in winter and less severe in summer, and are usually asymptomatic with occasional mild itching. Some of them may also be accompanied by erythema, followed by post-inflammatory hyperpigmentation. The disease generally has no specific symptoms and does not require treatment. If the patient’s lesions are more serious or itching symptoms are more severe, you can promptly seek medical attention, under the guidance of the doctor, local topical use of vitamin A acid ointment, salicylic acid ointment, urea ointment, etc. to soften the keratin to relieve symptoms, or systemic application of vitamin A, vitamin E and other drugs. Daily need to pay attention to skin cleanliness, to avoid scratching infection. Diet can eat carrots, tomatoes and other foods rich in vitamin C. In addition, since this symptom can affect the appearance, and there is no complete cure, patients are advised to calm down and avoid anxiety and depression.