<s>[INST] <<SYS>> This is a medical question of type : information <</SYS>> What is (are) Diabetic mastopathy ? [/INST] Diabetic mastopathy are noncancerous lesions in the breast most commonly diagnosed in premenopausal women with type 1 diabetes. The cause of this condition is unknown. Symptoms may include hard, irregular, easily movable, discrete, painless breast mass(es). </s>