Sudden and rapid weight gain may indicate fluid retention due to kidney or heart disease, notes Healthgrades. Cushing's disease and polycystic ovarian syndrome cause weight gain, according to the Centers for Disease Control and Prevention, and insulin resistance and hypothyroidism can cause the condition, reports MedicineNet.Continue Reading
Unintentional rapid weight gain is often a sign of fluid retention, also known as edema, according to Healthline. Edema causes the hands, face, abdomen and legs to appear swollen, and it is common in people who suffer from heart disease or kidney disease.
Cushing's disease causes the adrenal glands to produce excessive amounts of the stress hormone cortisol, reports MedicineNet. This causes fat to build up in the face, abdomen and upper back. Some people get Cushing's disease when they take steroids for lupus, asthma or arthritis, according to WebMD.
Women who suffer from polycystic ovarian syndrome often gain weight, especially around their bellies, states WebMD. Syndrome X is a group of diseases linked to insulin resistance, according to MedicineNet. Insulin resistance causes hormones that regulate metabolism not to work as efficiently, leading to weight gain.
People who suffer from hypothyroidism, or an underactive thyroid, do not produce enough thyroid hormone to help in burning stored fat, explains MedicineNet. Therefore, their metabolisms are slower, and they tend to gain more weight.Learn more about Pain & Symptoms