Softening once pants are off may be caused by overindulgence, stress, tension and erectile dysfunction. 1. Overindulgence: Patients who are soft when they take off their pants may have recently overindulged in sex, leading to a temporary decline in sexual function. It is recommended to suspend sexual life for a period of time, pay attention to rest, and adhere to the exercise should be improved. 2. Excessive pressure, nervousness: when men are in a state of excessive pressure, nervousness, can also lead to the phenomenon of soft pants off. It is recommended to relax before the start of sex, in a quiet and undisturbed situation. 3. Erectile dysfunction: men who have erectile dysfunction can also lead to the phenomenon of soft pants. In this case, the patient should consult a doctor in time to clarify the cause of the disease, for the cause of the treatment, symptomatic treatment can be prescribed to take sildenafil citrate tablets or tadalafil tablets and other medications to relieve. If men often appear to be soft when they take off their pants, it is recommended to go to the regular hospital for examination and treatment.