The underarm bulge can be massaged into the localized lump and along the direction of the opening of the mammary gland to help discharge the milk. The armpit bulge is usually caused by the milk not being discharged in time, and in serious cases it may cause inflammation of the mammary gland, which needs to be removed in time to help discharge the milk. 1. Massage the localized lumps: if the armpits appear to be bulging, you can use a hot towel to apply external compresses to the localized lumps, and then massage the localized lumps with your hands to help promote the dissipation of the lumps. 2. Drain the milk along the direction of the opening of the mammary gland: the normal mammary gland has 15 to 20 gland lobes, each gland lobe has a separate milk duct, gland lobes and milk ducts are centered on the nipple, arranged in a radial pattern. When a woman has milk stagnation, she can massage the milk out in the direction of the opening of the milk ducts to help unclog her breasts. Women are advised to seek medical advice as soon as possible if they experience breast tenderness or even fever.