Suddenly gained weight? Possible causes from medicines to hormones
When the scale creeps up for no obvious reason, sometimes there's more to it than food and exercise. The most common causes and when to ask your doctor.
- weight
- causes
- medicines
In short
Rapid weight gain over a few days is usually water. Slower gain over weeks can relate to life circumstances, hormones or medicines.
Never stop prescribed medicines on your own, even if you suspect them. Talk to your doctor instead; there are often alternatives.
Medicines as a cause
Some groups of medicines can increase weight, such as certain antidepressants and antipsychotics, long-term corticosteroids, insulin and some other diabetes medicines, some antiepileptics and beta blockers.
Whether a medicine plays a role for you can only be judged individually. The package leaflet gives a first hint.
Other common causes
- Fluid retention, e.g. cycle-related, from heat or salty food
- Underactive thyroid
- Menopause or PCOS
- Stopping smoking
- Less sleep, more stress, a changed routine
- Rarely: hormonal conditions such as Cushing's syndrome
When to see a doctor promptly
If weight gain comes with swollen legs, breathlessness, marked tiredness or other new symptoms, please get it checked quickly. Heart or kidney problems, for example, can be behind it.
Note
This Journal article offers general information. It is not a diagnosis, a prescription or a promise of any result. Whether treatment is suitable for you is decided by a doctor after reviewing your questionnaire. For acute or severe symptoms, contact your GP, the out-of-hours medical service (116117) or, in an emergency, 112.
Sources and medical review
Based on the German S3 obesity guideline and product information for the medicine groups mentioned. Medical review pending.
- German S3 guideline on prevention and treatment of obesity (medication-related weight gain)