Can I give blood if I am just 62kg in weight?

Weight is not the only factor in giving blood. The exact restrictions depend on your country/state/county.

Typically to give blood you need to:

• Be 110lbs (49.8kg)
• Be 18 or over (less in some countries/states)
• Have a blood pressure below 180
• Not have a tongue, nose, belly button or genital piercing in the last 12 months (ears are fine)
• Not have a cold, flu or other virus
• Not have Diabetes
• Not have a genetic condition such as cystic fibrosis
• Have a meal 4 hours before donation (not required but recommended)
• Not be a sexually-active homosexual male (blood of gay males could develop HIV)

Other conditions may apply or not apply according to regulations in your country/state/county of residence. You will be better informed if you directly asked a medical professional in your area.