Whether it is better to let the nail fall off naturally or to pull it out needs to be analyzed in the light of the individual’s situation, and each has its own benefits. If the nail has not fallen off or has no tendency to fall off, it is better to let it fall off naturally; if the bruise has not been able to be absorbed after smashing, or if there is accumulation of pus or infection, it is better to pull out the nail. 1. Naturally fall off good: after the nail smashed after bruising, if the nail has not fallen off or no tendency to fall off, naturally fall off better. During the period, you can follow the doctor’s instructions to use iodophor to disinfect, to avoid infection. If there is no damage to the nail bed, the nail can grow on its own after falling off. 2. Pulling out is good: after the nail is smashed and the blood has not been able to be absorbed, resulting in the emergence of under-nail bruising, easy to accumulate pus or infection, etc. At this time, pulling out the nails is better, and it is necessary to carry out incision and drainage before pulling out the nails. Regardless of whether the nail is removed or not, it should be sterilized, bandaged, and regularly changed, and take ibuprofen, diclofenac sodium and other medications for pain relief as prescribed by the doctor. It is recommended that the patient should consult a doctor in time, and under the doctor’s guidance, fully integrate the individual situation, choose the way that suits you, so as to avoid other adverse consequences.