I have white patches on my covered portion of body. Dr. told me that it is due to my age. I am 53 year

Question

I want to get rid of these patches.

Answer 1

what kind of patches are they?
are they dry and scaly?
if so you could have psoriasis

Answer 2

Common Causes:

sunburn or sun tan
uneven application of sunscreen resulting in areas of burn, tan, and no tan
cuts, scrapes, wounds, insect bites and minor skin infections
skin discoloration during the healing process
with time, the skin coloring generally returns
In darker-skinned people skin damage may cause permanent hyperpigmentation
moles (nevi) and bathing trunk nevi or giant nevi
malignant melanoma
cafe-au-lait spots
Mongolian blue spots
vitiligo
pityriasis alba (small circular pale spots on a child's face, usually the cheeks, often noticeable in the summertime when the skin is tanned)
tinea versicolor
erythrasma
mask of pregnancy (also called chloasma or melasma, a dark brown discoloration of the cheeks and the forehead of pregnant women or those using oral contraceptives)
photosensitivity as a reaction to medications or certain drugs
radiation therapy