Hello,
The ring bruise can be
Pearly penile papules - small, fleshy bumps that usually develop in gland penis in rows around the head of the penis.
Fungal infection.
regarding erection issue :
1. Decrease sensation of the penis- can be due to infection, diabetes,
spinal injury, recent masturbation
2. Stress due to work or family related, night duties
3. Depression
4. Varicocele
5. Fear of failure - having one episode of ED once may make you feel you will end up with ED
6. Low self-esteem (Chronic Masturbation)
7.
Homosexuality
8. Religious constraints -
9. Long term illness – Cardiac disease,
thyroid disease, Kidney Disease, any other disease with long term medication
10. Negative attitude towards Your partner
11. Hormonal issue – thyroid issue, low
testosterone
12. Long term drug usage
13. Diabetes and Hypertension
Need to check Doppler Penis, USG Pelvis and scrotum, Blood Pressure, RBS, Free T3 T4 TSH.
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr S.R.Raveendran, Sexologist