Urinary incontinence is the involuntary leakage of urine; in simple terms, to wee when you don't intend to. It is the inability to hold urine in the bladder because voluntary control over the urinary sphincter is either lost or weakened.
By Mayo Clinic Staff. The exact cause of type 1 diabetes is unknown. In most people with type 1 diabetes, the body's own immune system â which normally fights harmful bacteria and viruses â mistakenly destroys the insulin-producing (islet) cells in the pancreas.
Type 1 diabetes occurs when your immune system, the bodyâs system for fighting infection, attacks and destroys the insulin-producing beta cells of the pancreas. Scientists think type 1 diabetes is caused by genes and environmental factors, such as viruses, that might trigger the disease.