The development of human limbs on the left and right sides should be symmetrical and identical. If one side is stunted, the problem of motor muscle spasm dominated by motor nerve may occur. This article will introduce the problems and solutions of abnormal development of baby's arm muscles.

Infant hand development

4-month-old babies often hold things with the whole palm. At 7 months, you can pick things up with your thumb and two other fingers. It's normal for babies to scratch with their hands. A 5-month-old baby will hold things with both hands and stuff everything into his mouth.

Muscular dysplasia of arm

If the baby's right thumb stretches out and the muscle flexibility is not good, it will lead to the adduction of the baby's thumb. This shows that the motor muscles of the baby's arm are not stretched long enough, and the abnormal muscle tension affects the normal function of the baby's thumb.

♀? Massage stretching

Stretch massage the baby's buttoned thumb and arms. After the massage, fix your thumb with a handkerchief and keep it open. But be careful not to wrap it too tightly to avoid poor blood flow. Observe that the thumb turns purple and loosen it. Do it every day, and it will work slowly.

See a doctor.

After 3 months, the baby's fingers will open, and it is not normal for the baby to open one without opening the other. I want to go to the children's hospital for neurological examination.