this could be from holding your pen wrong
aids
Of course you need to
These bumps show you where your "Home Keys" are by touch. If you type in the correct way, your pointer fingers should rest over the "F" and the "J". These bumps allow you to find these keys by touch so you do not have to glance down at the keyboard to know where your fingers are. There are many products to enhance or act as visual aids. Example. www.keyboardbumps.com
Blisters.
The testicles are gently rolled and massaged between the fingers and thumb to feel for bumps, swelling, tenderness, or irregularities.
The ridges in the skin at the tips of our fingers create unique patterns that form our fingerprints. These ridges are formed by the dermal papillae, which are small bumps in the top layer of the skin (epidermis).
Scabies
touch typing using the bumps on the F and J keys to tell where to put your index fingers.
Red bumps on fingertips could be caused by conditions such as contact dermatitis, eczema, psoriasis, or an allergic reaction. It is important to consult a healthcare provider for proper diagnosis and treatment.
On most keyboards, there are bumps built into the keys so that you can feel it. On others, you might have to feel up the rows of keys and over to the edge on left and right to make sure your fingers are on the right keys.
If your bumps are itchy it could be scabies....thats usually where they start....then it spreads to other areas known as hot spots such as behind the knees, wrists, where your arm bends...etc. It is usually worse at night when you are sleeping if it is itching....if it continues you need to see your doctor
The home position is a starting point to move fingers and hit keys. Return a finger to a home position every time it leaves its place to hit another key. The keys 'f' and 'j' have small bumps intended to facilitate home position hunting. So, if you hit these keys with your index fingers the other fingers are automatically placed in home position.