Caudalgia can be associated with caudal pressure and abnormal activity on anal palpation, and sometimes fracture breaks and displacements can be palpated. Most congenital tailbone deformities are hook-shaped, which inevitably causes a state of high tension in the surrounding muscles and ligaments, resulting in pain due to premature degeneration of these tissues. It is extremely rare for this factor to cause disease. Tailbone pressure pain and abnormal activity prevention methods are as follows: 1, adhere to some functional physical activity: such as daily adhere to slow walking. This can prevent osteoporosis and reduce the chances of developing the disease. 2, eat more calcium-rich items: such as milk, fish, soy products, eggs, etc., if necessary, you can supplement the drug calcium. 3.Regular physical examination: anti-aging drugs such as vitamin D and calcium can be taken in appropriate amounts, and sex hormones can be used if necessary, but they should be applied under the guidance of a doctor, and the dosage and duration of medication should be strictly controlled. You can also often take a liver and kidney tonic, strong tendons. 4, eliminate non-skeletal factors that cause tailbone pressure pain and abnormal activity: ① pay attention to safety in daily activities to avoid falls; ② choose appropriate exercise methods to avoid injury; ③ create a good living room environment and lighting facilities; ④ dress generously and loosely to facilitate movement; ⑤ adjust medication to maintain a better mental state; ⑥ senior citizens should be taken care of when they go out; ⑦ take comprehensive measures for patients with osteoporosis to improve muscle strength and visual acuity, improve balance and reaction ability, prevent bumps, falls and fractures.