FNAC is the fastest and easiest method of breast biopsy, and the results are rapidly available. FNAC is excellent for confirming breast cysts, and since the procedure does not require stitches, patients are usually able to resume normal activity almost immediately after the procedure. Disadvantage of FNA is that the procedure only removes very small samples of tissue or cells from the breast. If the sample is benign fluid (for example, a cyst), then the procedure is ideal. However, in cases when the tissue is solid or if a sample of cloudy, then the results of the test allows only for a cytological (cell) diagnosis. This can be an incomplete assessment because the cells cannot be evaluated in relation to the surrounding tissue.