What are the associated risks of egg donation?  

Some egg donors may experience side effects of the procedure. However, the side effects are generally short-term and to be expected during and immediately after the ovarian stimulation and egg retrieval. The most common side effects are similar to PMS symptoms and include headaches, mood swings, bloating, nausea, cramping, hot flashes, breast tenderness and/or temporary stinging where the injection occurred.  

Ovarian Hyperstimulation Syndrome (OHSS) occurs in less than 1% of stimulated cycles, and even more rare is the risk of ovarian torsion, bleeding, and infections. 

Follow the link to read more about the egg donation process.