Hello Bubbles type forms are collection of fat globules with water retention . The most common side effects of steroid ( common for all steroid ) water retention , reabsorption of calcium from bones ( so bones become fragile ) , weight gain , fluid retention ( so also weight gain), indigestion , muscle weakness .Glaucoma , ulceration increased appetite and many more . There are so many steroid ,so you didn t mention particular steroid but these side effects are common. If being a physician , you will ask me , I recommend you DON T take any steroid , as these are meant for only medical emergency . Still I would say before any steroid intake consult some sports specialist and get his opinion. Good luck.