Sudden Weight Loss: Causes and When It Becomes a Concern

Losing weight without effort or any change in eating can be worrying, because the body is signaling that something may need to be checked. This article is general health awareness about the main causes, and diagnosis is always up to a doctor.

Common and Less Serious Causes

Weight can drop because of a change in eating habits or increased physical activity, or because stress and depression reduce appetite. Dental problems or difficulty swallowing can also make eating hard.

Medical Causes That Need Follow-Up

Among the most important are diabetes, an overactive thyroid, digestive problems such as malabsorption or stomach and intestinal disorders, some chronic infections, and, less commonly, tumors. Some medications can also affect weight, so if you are on treatment, ask your doctor or pharmacist.

When Should You See a Doctor?

See a doctor if you lose more than 5% of your body weight over six months without a clear reason, or if the weight loss comes with persistent fever, night sweats, ongoing diarrhea, abdominal pain, or severe fatigue. A doctor is the one who identifies the cause and orders the right tests.