Hello, under normal circumstances, babies born soon have high muscle tension and hard bodies or limbs. With the growth of months, the development of nervous system and muscle tension should decrease and return to normal. If the baby is still stiff after birth 1 month, especially when it is stimulated or crying, it will attract attention. For example, children with cerebral palsy often have abnormal movements or postures, such as upper limb flexion fixation or lower limb extension fixation, body spasmodic torsion, upper limb supination and so on. In addition, cerebral palsy is caused by brain lesions. In addition to the performance of muscles and joints, it can also be accompanied by mental retardation, such as dull expression, slow response, less spontaneous movements, easy to be surprised, easy to vomit, sleepy, and even unable to suck or suck.

To sum up, I suggest you go to the hospital to treat your baby. Finally, I hope your baby will grow up healthily.