How to define baby's thumb inward

During the development process of a newborn baby, parents should pay more attention to his growth and understand every stage of his growth, because some babies' abnormal postures and movements may indicate that there are some problems in their growth. For example, the problem of a baby's thumb turning inward is actually a typical symptom of cerebral palsy in babies, which makes many people worry and should be correctly defined.

1. Analysis of baby's inward-pointing thumb

1. During the baby's development, new mothers, especially mothers of premature babies, always have worries of one kind or another.

2. In fact, the development of most babies is normal, but there are individual differences in their development. Some babies develop quickly, while others develop slowly. There is no problem with this.

3. But sometimes, some abnormal postures or movements of the baby can indeed provide certain clues and basis for discovering the baby's developmental abnormalities. In this section, let's first talk about thumb inward.

4. We all know that when babies are born, they all have clenched fists. This is a normal phenomenon in the baby's development process.

5. But what is worrying is that among the typical symptoms of children with cerebral palsy, there is also an inward-turning thumb. This makes new mothers very embarrassed. Which kind of inward-turning thumb is normal and which one is abnormal?

2. What kind of inward-turning thumb is abnormal?

Regardless of the age, if the baby's thumb is completely retracted into the palm, it is the cortical thumb sign (as shown in the figure below), that is, the first joint and the second joint of the thumb are both retracted into the palm. Even if the other four fingers are spread out, the thumb is difficult to open, which is a manifestation of abnormal development.

3. The following situations are generally normal:

1. Newborn baby, make a fist.

For babies aged 2 to 3 months, their hands are still in a clenched fist shape, but they can occasionally open their fingers.

3. For the baby’s fingers, the first joint of the thumb should bend inward.

4. The first and second joints of the baby's fingers and thumb occasionally bend inward.

5. When making a fist, the thumb should bend inward, but the five fingers can be opened normally.

4. Does inward-turning thumbs necessarily mean cerebral palsy?

1. As mentioned before, if the thumb is inward-turned, it indicates that the baby may have cerebral palsy unless the two joints of the thumb are tightly adducted in the palm and the thumb is difficult to open.

2. Remember, what we are talking about here is just a possibility. If the baby really has cerebral palsy, there will definitely be other symptoms, not just the inward-turning thumb. So, if you are diagnosed, you still have to go to the hospital.