The German Endocrinology Association said "belly fat" - which arises despite a healthy diet and exercise - warns of hypothyroidism.
For his part, the German Federal Center for Health Education said that unexplained weight gain, that is, not due to eating large quantities of food, also warns of hypothyroidism.
He explained that hypothyroidism is caused by a lack of the hormone thyroxine, which causes a slow metabolism (metabolism), and then weight gain.
Besides weight gain, symptoms of hypothyroidism also include pallor, dryness, hair breakage, hair loss, chronic constipation, decreased ability to focus, exertion, fatigue, lethargy, sleep disturbances, and menstrual disorders.
So an endocrinologist should be consulted as soon as you notice these symptoms to check for hypothyroidism.