Patients with small hard lumps on the testicles should still pay some attention to them, and first of all, it is recommended to go to a regular hospital in time to receive a detailed examination. For example, a physical examination can be performed by a urologist to get a preliminary understanding of the specific size and location of the lump and to make a preliminary evaluation of the nature of the lump. In addition, an ultrasound examination of the testicles can be performed to clearly visualize the size, location, and nature of the small hard masses. Of course, some patients may not be particularly clear through ultrasound, then further CT or even MRI examination is needed to clarify the nature of the small hard mass, and if it is considered malignant, active surgery may be required.