What is the reason for the baby's thumb to bend inward?

Newborn babies' thumbs naturally turn inward and make fists. This is a very common and normal phenomenon, and parents do not need to worry. However, if the baby still often turns his thumbs inward and makes fists after 4 months, it should attract the attention of parents. It is best to take the baby to the hospital for examination. So what is the reason for the baby's thumbs turning inward? Let’s find out now if your baby’s thumb is turned inward, which means he has cerebral palsy.

Reasons for baby's thumb turning inward

1. When a baby's thumb is inward-turned, the hand is stretched outward and the thumb muscle has poor elasticity, causing the thumb to move toward the palm of the hand. Its main manifestation is that the fingers are clenched into a fist, the thumb is flexed and adducted, and the other four fingers are outside or inside the thumb.

2. If a baby's thumbs are turned inward, it does not necessarily mean that the baby suffers from cerebral palsy. Generally, the baby's fingers will open after three months. If one of the baby's fingers can open but the other cannot, it is abnormal and the baby should be taken to the Department of Neurology of a Children's Hospital for examination in time.

3. Because the development of the left and right sides of a child's limbs is symmetrical, if one side is delayed in development, there may be a problem of spasm of the motor muscles innervated by the motor nerve. A four-month-old baby often uses the entire palm when holding objects, and a seven-month-old baby can use his thumb. If the child cannot hold things with both hands, then something is abnormal.

4. Let's talk about the symptoms of cerebral palsy. They are too quiet, lack of active exercise, and developmental delay. For example, the baby cannot turn on the accelerator at three months old, cannot support weight with the forearms at the first four months, and stands with the toes on the ground. It is difficult to feed the baby after birth and the baby is easily frightened.