<s>[INST] I noticed a mosquito like bite on my testicles on my right side, since I thought It was just a mosquito bite I left it alone, since the itching persisted, I cant handle it anymore. Just today I took a shower and I noticed that I have an identical bite on my left side my testicles , almost simetrical. I don t know if this is a concern or anything. [/INST] HelloThanks for query. What you suspect to be mosquito bite are likely to be small sebaceous cysts over scrotal sac, The scrotal skin is rich in sebaceous glands and hence prone to get more sebaceous cyst due to accumulation of sebum beneath the skin. Normally they fade away without treatment however they need to be treated if increase in size or get infected. Please consult qualified General Surgeon for clinical evaluation and further treatment. Ensure to observe proper personal hygiene. Chat Doctor.  </s>