Years after Lipo of arms, why are they wavy and lumpy?

Thanks for your inquiry. 
Unfortunately, one of the risks of liposuction is having irregularities
in the skin.  It is important to see a
Board Certified Plastic Surgeon for your liposuction just to ensure that they
use the right technique because using the wrong technique like using a very
large cannula or sectioning superficially can all cause these
irregularities.  This is especially true
for areas like the arms that do not tend to have a lot of fat.  The irregularities are very difficult to
improve once they are there and after 8 years, they probably will not get
better on their own.  I would suggest a
consultation with a Board Certified Plastic Surgeon to further discuss your
options. 

Hello dear, thanks for your question and provided
information as well.. This is the surgical
procedure that revolutionized cosmetic surgery becoming one of the most
performed cosmetic procedures. Subcutaneous tissue or fat is removed in order
to contour the body in a way that is harmonious and pleasing to the senses. It
can be performed in almost all regions of the body such as the neck, chin,
abdomen, back, buttocks, thighs, arms and ankles. Usually done through a small
incision in the skin through which a cannula connected to a vacuum is applied,
it can be performed alone or in combination with other procedures. After
liposuction your body is going to be really swollen for at least 2 to 4 months
after your surgery. It is important for you to wear your compression garment
for at least 6 months, the first 3 months 24/7 and then the last 3 months at
least 12 hours per day for your body get use to not having the faja for so many
time. When you remove it, your body can get swollen and also you can have pain.
Remember to also compress your body to prevent a seroma which is an
accumulation of liquid that has to be drained, it is hard to touch and also
really painful. Bruises are completely normal for almost 3 months from surgery,
that’s why is better for you to use a bruising cream and apply it all over your
body 3 times a day. To prevent bad circulation and swollen legs, use
compression socks. Brazilian butt lift can be performed with the same procedure
and for a month it will be swollen and it will drop a little bit without losing
it’s shape if you use your garment.. If you’re going to perform liposuction on
your inner, outer, anterior, lateral, postetior thighs, be careful and consult
with your surgeon what’s best for you, sometimes we have more extra skin than
fat, that can cause severe sagginess on our legs, which can be only be reversed
performing a thigh lift…

The best way to correct post lipo deformities of the arm would be with a brachioplasty. In minor cases fat graft can help. This may have been over resected with the liposuction, although some people get contour abnormalities even if the procedure was done correctly.