A bump above your kneecap under the skin could be caused by various factors, such as a cyst, a bursitis (inflammation of a bursa), or a ligament injury. It's also possible that it could be a benign growth like a lipoma. If the bump is painful, increasing in size, or accompanied by other symptoms, it’s advisable to consult a healthcare professional for an accurate diagnosis and appropriate treatment.
Cyst
A hard bump under skin on the side of the nose that comes and goes sounds like a common zit. However, it also could be a calcium deposit.
A bump is a lump like, for example, a bump on your skin or a bump in a road.
The inside of the knee, or knee "pit," is the popliteal fossa. The front of your knee is the prepatellar skin. wagina
When you bump your knee (or other body parts) there is some damage to the various tissues involved. The body has two main types of fluids that constantly circulate, which are blood and lymph. When there is damage to the body, these fluids tend to leak out of their normal pathways and vessels, and to pool in the damaged area. Bumps are formed as a result of added fluid. Eventually the excess fluid will be reabsorbed into its normal circulation, and the bump will heal.
It could be chicken pox
Similar to a bee-sting reaction; you have just introduced a toxin under your skin.
A bump under the skin where an IV was placed could be caused by inflammation, a reaction to the IV fluids or medication, or a hematoma (collection of blood). It is best to monitor the bump for any changes in size, shape, or color, and contact a healthcare provider if there is increasing pain, redness, or warmth in the area.
Bruises or swollen.
keloid...
Yes, some people are more bruising than others. If bump remains for longer than a few days without change, tell your doctor.
Possibly a plugged hair follicle or a cyst. Only your doctor can tell you for certain as it would have to be looked at to be diagnosed.