Medical Conditions - Rapid Weight Loss

Rapid weight loss or losing weight without trying occurs due to some underlying medical conditions. There is a loss of 5% of weight within six to twelve months, along with other symptoms. Unexpected weight loss can occur due to muscle wasting, hyperthyroidism, rheumatoid arthritis, diabetes, depression, inflammatory bowel disease, chronic obstructive pulmonary disease, endocarditis, cancer, Addison's disease, cancer, and congestive heart failure.