Strictly speaking, body weight is the measurement of weight without items located on the person. Practically though, body weight may be measured with clothes on, but without shoes or heavy accessories such as mobile phones and wallets and using manual or digital weighing scales. Excess or reduced body weight is regarded as an indicator of determining a person's health, with body volume measurement providing an extra dimension by calculating the distribution of body weight.
To control your weight according to your height you need to eat less & move more is the basics of weight loss. There are some medication which helps you to reduce your weight but still you are supposed to focus on your diet and exercise while taking these drugs.
You should share your medical history with your doctor when you are taking weight loss treatment so that he can suggest you the best medication.