When a patient is diagnosed with obesity, it is important to be evaluated for other potential health problems such as hypertension and diabetes, which can lead to further health complications.
The exact mechanism for how obesity causes hypertension is unknown. What is known, however, is that one of the systems responsible for controlling the volume of blood in the body — the renin-angiotensin-aldosterone system — may be interfered with when fat tissue causes the kidneys to function irregularly or improperly. This interference can alter blood pressure.
The link between obesity and diabetes is not fully understood at this time. However, there is a strong relationship between obesity and insulin resistance.