according to dr sonam its because the blood comes directly from the heart
They have slightly fewer nerves so it will hurt less.
This may be pertaining to fellatio; or in any circumstances, sucking the middle finger of blood because of a cut. ^_^
Pricking the finger in the middle of the tip can be painful and increase the chance of hitting a nerve, causing discomfort or numbness. It is also important to avoid the center to prevent damage to the sensitive tissues and ensure an adequate blood flow for an accurate blood sample.
Right hand: Thumb up, pointer finger makes a "B" with the thunb. middle finger stays straight up to make the "L". ring finger curls around onto the middle finger to make an "O". Left hand: thumb and pointer finger makes a "D" by putting pointer finger halfway down thumb. Middle finger curls around onto the curled pointer finger to make the "O". Put the two "O" 's together. =)
Dermal puncture refers to a technique used to obtain capillary blood samples by pricking the skin using a lancet or needle. It is commonly done on the finger, heel, or other suitable site for blood collection in medical settings such as hospitals, clinics, or laboratories.
If you look closely, the blood symbol spells out "Blood" with the fingers. The right thumb and forefinger make the "B". The right middle finger is the "L". The Right ring finger is the "O". The left middle finger makes the other "O", while the thumb and forefinger of the left hand creates the "D". Note: This example is from the perspective of who is using the sign. When you look at the blood symbol you can see "blood".
to make the blood circulation move clearly
Assuming you're talking about when a medical person takes a pin-prick sample of blood... They usually take it from the middle finger - from the side of the end joint.
Lavender
If a girl cuts her finger, the blood itself will chemically stop her finger from bleeding. The blood will form a clot at the cut and stop other blood from flowing out if no artery was severed.
If testing for blood glucose, you should puncture the middle finger on the non-dominant hand. Do not puncture the pad, but rather just off to the side as there are fewer pain receptors there and you can still get an adequate sample.
when you swing your hand, the inertia will cause the blood to flow to your hand, so there will be enough blood to be tested.