Welcome to Justanswer! I am Dr. Altman and happy to assist you both today!
By describing the lumps as cysts that indicates they have been diagnosed as such, are soft, fluctuant and appear to be fluid-filled. If they have not been diagnosed or are not described as these then a veterinary exam is warranted. Most common in the breed we see sebaceous tumors which are masses that are benign yet filled with a thicker material. Or they can also have adenomas which are also benign but solid masses that can grow or be stagnant in size.
First and foremost, in order to determine if they are benign (noncancerous) lumps versus malignant (cancerous) lumps is to have your veterinarian evaluate and aspirate (poke with a needle) the lumps to evaluate the material under the microscope
This is really the only way to differentiate the concerning from the non concerning lumps definitively because a cancerous versus a noncancerous lump can appear identical on presentation
Evaluation under the microscope will be looking at the lump at a cellular level. Do the cells look normal, is it sebaceous or oil material that is benign or even fatty material indicating a lipoma or are the cells abnormal in appearance? This information is critical in order to diagnose the lump origin and whether it should be removed sooner versus later
Some tell tale signs that a lump might be more of a concern include whether it is rapidly growing, it is bothersome (scratching, licking), it is not easily picked up from the underlying tissue indicating it is attached to the muscle layer. This can be helpful but not 100 % definitive as a fine needle aspiration would be
I always advise photographing the lump with a ruler or coin next to the lump to measure the size weekly or in dark skinned dogs where it is not as readily viewable measuring with a ruler on a regular basis
Please let me know if this information makes sense and any additional questions I can assist with today
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