How to measure penile sensation threshold?

We commonly use the following methods:

The first is the penile biosensory threshold measurement, for the use of threshold measurement, premature ejaculation patients with a lower threshold than normal.

The second is the measurement of the dorsal nerve sensory evoked potential of the penis.

The third is the determination of sensory evoked potentials in the head of the penis. If a patient with premature ejaculation has sensory evoked potentials in the head of the penis, the patient with premature ejaculation has a shorter latency period than a normal person and the amplitude of the sensory evoked potentials is higher than that of a normal person, so the patient with this kind of glans has a higher sensitivity than a normal person, and is prone to premature ejaculation, in which case he or she should be detected in a regular hospital, and the results of the tests conducted in some private hospitals are not very accurate and often lead to some misdiagnoses or false diagnoses. The results of some private hospitals are not very accurate, often some misdiagnosis or the possibility of over-treatment, so you need a specialist to do diagnosis.