It depends where the cyst is, as to how complex the op is. We have dealt with two very complex cysts, here at TEAS. One was on the rump of a piggy, that hadn't been dealt with properly and had become very deep and large and the other one was on the top of a piggies head. Again, this didn't look particularly large at the surface, but it was much bigger than it appeared. This meant there was not enough skin to close the incision, so further incisions had to be made and left open, to enable to skin to be pulled upwards. The piggy looked quite horrific immediately post op, but the incisions healed quickly and the skin stretched to enable his face to look normal again. Now about 4 weeks post op, he is pretty much back to normal apart from the hair is still in the process of growing back.