Hy....I want to know how can i remove dark spots...

how to remove dark spots form the face ?
the treatment for dark spots or ( what so called melasma) is by an acidic creams from natural sources such as kojic cream or azealaic acid cream and by other chemical creams such as aspirin cream and by using retenoids scream such as teritinoin cream or isoteretinoin pills and by using dermabrasion many methods such as chemecal peeling and dermabrasion 
what are the causes of dark spots ?

• hormonal changes specially at females 
• pregnancy and lactation 
• burns( old ones )
• excess sunlight exposure 
• family history 
• having a red hair 

what are the diagnostic tests ?
the doctor will exam the patients skin and its usulally enough 
what is the  advice ?
we advice you to visit the dermatologist for the right diagnosis and the correct treatment