A thorn in the hand is invisible and painful to touch, mainly because the thorn that enters the soft tissue causes irritation to the surrounding tissue. After a thorn in the hand, if the thorn itself is relatively small, completely into the soft tissue will not be observed, but the thorn itself will cause stimulation of the surrounding soft tissue, in the process of touching will cause pain and discomfort symptoms. After the appearance of the corresponding symptoms, you can first observe the surrounding tissue condition, part of the shallow thorns will be discharged out of the body, the thorns deeper can not be excluded from the body after the gradual calcification, once there is obvious redness and swelling around, or even infected, you need to consult a doctor for treatment in a timely manner, under the guidance of the clinician to carry out standardized treatment.