Hello and welcome to HCM,
Bruises on body can occur due to many reasons.
The most common cause is trauma.
Is there any history of trauma in recent past?
Secondly, decrease in number of platelets or dysfunction of the platelets can lead to bruises. Platelet count
and tests for platelet functions need to be performed.
Less common causes of easy bruisibility are connective tissue
disease, vessel wall abnormalities, etc.
Investigations pertaining to platelets will reveal the abnormality as the possibility of platelet disorders
is the most common possibility.Calcium deficiency
is a separate entity.
You need to take calcium supplements
for calcium deficiency.
Thanks and take care
Dr Shailja P Wahal