The purpose of this study is to define the cause of renal stones and the risk pattern for recurrence of renal stones episodes (any kind of stones) in HIV1 patients.

This study aims at defining the cause of renal stones and the risk pattern for recurrence of renal stones episodes (any kind of stones) in HIV1 patients.

Primary Objective :

• Finding the cause of renal stone in HIV patients defined as stone composition if stone is available or more probable pathophysiological mechanism
• Risk profile for stone recurrences estimated on risk indices in HIV1 patients

Secondary Objective(s)

• Identify prevalence of recurrences and describe co-morbidities associated with stone disease
• Describe urological management for renal stones in HIV patients
• Describe the causes of drug induced renal stones

Inclusion Criteria:

• Adult male or female HIV1 infected patients willing to participate in the study
• Having experienced a renal stone episode within the past six months or living with a renal stone
• Able to understand the protocol
• Giving oral consent

Exclusion Criteria:

• CT scan impossible
• Follow up impossible over 1 year

Adult male or female HIV1 infected patients having experienced a renal stone episode within the past six months or living with a renal stone