Massage granules and nodules on the soles of the feet may consider ringworm of the feet, fatty granules, plantar warts, boils and other causes. 1. Tinea pedis, also known as foot fungus, is primarily caused by a fungal infection. Skin damage usually occurs first on a single foot. It results in the appearance of rice-sized blisters distributed sparsely or in clusters between the toes, on the edges of the feet, and on the soles of the feet. The blisters may merge with each other to form multi-housed blisters. 2. Fat grain: common in women who like to wear high heels for a long time. When you don’t pay attention to the care of your feet and don’t pay attention to massaging the soles of your feet to soothe them, the soles of your feet may grow particles or hard knots. 3. Plantar warts: Trauma, friction, and pressure on the skin of the soles of the feet can easily be infected with the human papilloma virus, leading to plantar warts on the soles of the feet. The plantar warts can be found on the soles of the feet in the form of granules or nodules the size of a grain of rice to a soybean, and the surface of the skin on the soles of the feet is keratinized, rough and uneven, and gray-brown or gray-yellow. 4. Boils: mainly caused by bacterial infection of hair follicles and their deep surrounding tissues. In addition to localized redness, swelling, heat and pain, white granules may appear on the soles of the feet and may recur. It is recommended to pay attention to foot hygiene, keep the feet clean and dry, and wear comfortable and soft shoes. At the same time, avoid eating spicy and stimulating food, avoid excessive friction on the feet, so as not to aggravate the symptoms. Those who massage the soles of the feet with granules and nodules should seek timely medical treatment.